become expert | help |
refer a friend - earn nickels!!

originally posted here on IIT-JEE / AIEEE community

like the article? email it to a friend.

email this article!

FORMULAE...................!!!!!!!!!!!!

posted on 16 Aug 2007 15:05:17 IST 995 views 13 comments

« Back to Articles

Tagged with: Mathematics Integral Calculus

15 Nickels awarded!

INTEGRALS CONTAINING x²+a²

1.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}+a^{displaystyle2}}=displaystyle rac{1}{a} an^{displaystyle-1}displaystyle rac{x}{a}$
2.: $displaystyle intdisplaystyle rac{x,dx}{x^{displaystyle2}+a^{displaystyle2}}=displaystyle rac{1}{2}ln(x^{displaystyle2}+a^{displaystyle2})$
3.: $displaystyle intdisplaystyle rac{x^{displaystyle2},dx}{x^{displaystyle2}+a^{displaystyle2}}=x-a an^{displaystyle-1}displaystyle rac{x}{a}$
4.: $displaystyle intdisplaystyle rac{x^{displaystyle3},dx}{x^{displaystyle2... ...laystyle rac{a^{displaystyle2}}{2}ln(x^{displaystyle2}+a^{displaystyle2})$
5.: $displaystyle intdisplaystyle rac{dx}{x(x^{displaystyle2}+a^{displaystyle... ...aystyle rac{x^{displaystyle2}}{x^{displaystyle2}+a^{displaystyle2}} ight)$
6.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}(x^{displaystyle2}... ...yle rac{1}{a^{displaystyle3}} an^{displaystyle-1}displaystyle rac{x}{a}$
7.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle3}(x^{displaystyle2}... ...aystyle rac{x^{displaystyle2}}{x^{displaystyle2}+a^{displaystyle2}} ight)$
8.: $displaystyle intdisplaystyle rac{dx}{(x^{displaystyle2}+a^{displaystyle2... ...le rac{1}{2a^{displaystyle3}} an^{displaystyle-1}displaystyle rac{x}{a}$
9.: $displaystyle intdisplaystyle rac{x,dx}{(x^{displaystyle2}+a^{displaysty... ...splaystyle2}}=displaystyle rac{-1}{2(x^{displaystyle2}+a^{displaystyle2})}$
10.: $displaystyle intdisplaystyle rac{x^{displaystyle2},dx}{(x^{displaystyle... ...e2})}+displaystyle rac{1}{2a} an^{displaystyle-1}displaystyle rac{x}{a}$
11.: $displaystyle intdisplaystyle rac{x^{displaystyle3},dx}{(x^{displaystyle... ...aystyle2})}+displaystyle rac{1}{2}ln(x^{displaystyle2}+a^{displaystyle2})$
12.: $displaystyle intdisplaystyle rac{dx}{x(x^{displaystyle2}+a^{displaystyle... ...aystyle rac{x^{displaystyle2}}{x^{displaystyle2}+a^{displaystyle2}} ight)$
13.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}(x^{displaystyle2}... ...le rac{3}{2a^{displaystyle5}} an^{displaystyle-1}displaystyle rac{x}{a}$
14.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle3}(x^{displaystyle2}... ...aystyle rac{x^{displaystyle2}}{x^{displaystyle2}+a^{displaystyle2}} ight)$
15.: $displaystyle intdisplaystyle rac{dx}{(x^{displaystyle2}+a^{displaystyle2... ...laystyle rac{dx}{(x^{displaystyle2}+a^{displaystyle2})^{displaystyle n-1}}$
16.: $displaystyle intdisplaystyle rac{x,dx}{(x^{displaystyle2}+a^{displaysty... ...le rac{-1}{2(n-1)(x^{displaystyle2}+a^{displaystyle2})^{displaystyle n-1}}$
17.: $displaystyle intdisplaystyle rac{dx}{x(x^{displaystyle2}+a^{displaystyle... ...aystyle rac{dx}{x(x^{displaystyle2}+a^{displaystyle2})^{displaystyle n-1}}$
18.: $displaystyle intdisplaystyle rac{x^{displaystyle m},dx}{(x^{displaystyl... ...splaystyle m-2},dx}{(x^{displaystyle2}+a^{displaystyle2})^{displaystyle n}}$
19.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle m}(x^{displaystyle2... ...x^{displaystyle m-2}(x^{displaystyle2}+a^{displaystyle2})^{displaystyle n}}$

Common Integrals INTEGRALS CONTAINING ax+b

1.
2.: $displaystyle intdisplaystyle rac{x,dx}{ax+b}=displaystyle rac{x}{a}-displaystyle rac{b}{a^{2}}ln(ax+b)$
3.: $displaystyle intdisplaystyle rac{x^3,dx}{ax+b}=displaystyle rac{(ax+b)... ...splaystyle rac{3b^{2}(ax+b)}{a^{4}}- displaystyle rac{b^{3}}{a^4}ln(ax+b)$
4.: $displaystyle intdisplaystyle rac{x^2,dx}{ax+b}=displaystyle rac{(ax+b)... ...displaystyle rac{2b(ax+b)}{a^{3}}+displaystyle rac{b^{2}}{a^{3}}ln(ax+b)$
5.
6.: $displaystyle intdisplaystyle rac{dx}{x^{2}(ax+b)}=-displaystyle rac{1}{bx}+displaystyle rac{a}{b^{2}}lnleft(displaystyle rac{ax+b}{x} ight)$
7.: $displaystyle intdisplaystyle rac{dx}{x^{3}(ax+b)}=displaystyle rac{2ax-... ...}+displaystyle rac{a^{2}}{b^{3}}lnleft(displaystyle rac{x}{ax+b} ight)$
8.: $displaystyle intdisplaystyle rac{dx}{(ax+b)^{2}}=displaystyle rac{-1}{a(ax+b)}$
9.: $displaystyle intdisplaystyle rac{x,dx}{(ax+b)^{2}}=displaystyle rac{b}{a^{2}(ax+b)}+displaystyle rac{1}{a^{2}}ln(ax+b)$
10.: $displaystyle intdisplaystyle rac{x^{2},dx}{(ax+b)^{2}}=displaystyle ra... ...displaystyle rac{b^{2}}{a^{3}(ax+b)}-displaystyle rac{2b}{a^{3}}ln(ax+b)$
11.: $displaystyle intdisplaystyle rac{x^{3},dx}{(ax+b)^{2}}=displaystyle ra... ...playstyle rac{b^{3}}{a^{4}(ax+b)}+displaystyle rac{3b^{2}}{a^{4}}ln(ax+b)$
12.: $displaystyle intdisplaystyle rac{dx}{x(ax+b)}=displaystyle rac{1}{b(ax+b)}+displaystyle rac{1}{b^{2}}lnleft(displaystyle rac{x}{ax+b} ight)$
13.: $displaystyle intdisplaystyle rac{dx}{x^{2}(ax+b)^{2}}=displaystyle rac{... ...2}x}+displaystyle rac{2a}{b^{3}}lnleft(displaystyle rac{ax+b}{x} ight)$
14.: $displaystyle intdisplaystyle rac{dx}{x^{3}(ax+b)^{2}}=-displaystyle rac... ...-displaystyle rac{3a^{2}}{b^{4}}lnleft(displaystyle rac{ax+b}{x} ight)$
15.: $displaystyle intdisplaystyle rac{dx}{(ax+b)^{3}}=displaystyle rac{-1}{2(ax+b)^{2}}$
16.: $displaystyle intdisplaystyle rac{x,dx}{(ax+b)^{3}}=displaystyle rac{-1}{a^{2}(ax+b)}+displaystyle rac{b}{2a^{2}(ax+b)^{2}}$
17.: $displaystyle intdisplaystyle rac{x^{2},dx}{(ax+b)^{3}}=displaystyle ra... ...playstyle rac{b^{2}}{2a^{3}(ax+b)^{2}}+displaystyle rac{1}{a^{3}}ln(ax+b)$
18.: $displaystyle intdisplaystyle rac{x^{3},dx}{(ax+b)^{3}}=displaystyle ra... ...splaystyle rac{b^3}{2a^{4}(ax+b)^{2}}-displaystyle rac{3b}{a^{4}}ln(ax+b)$
19.: $displaystyle intdisplaystyle rac{dx}{x(ax+b)^{3}}=displaystyle rac{a^{2... ...x+b)}-displaystyle rac{1}{b^{3}}lnleft(displaystyle rac{ax+b}{x} ight)$
20.: $displaystyle intdisplaystyle rac{dx}{x^{2}(ax+b)^{3}}=displaystyle rac{... ...3}x}+displaystyle rac{3a}{b^{4}}lnleft(displaystyle rac{ax+b}{x} ight)$
21.: $displaystyle intdisplaystyle rac{dx}{x^{3}(ax+b)^{3}}=displaystyle rac{... ...-displaystyle rac{6a^{2}}{b^{5}}lnleft(displaystyle rac{ax+b}{x} ight)$
22.: $displaystyle int(ax+b)^{displaystyle n},dx=displaystyle rac{(ax+b)^{displaystyle n+1}}{(n+1)a}, ,;; n eq -1$
23.: $displaystyle int x(ax+b)^{displaystyle n},dx = displaystyle rac{(ax+b)^{... ...e rac{b(ax+b)^{displaystyle n+1}}{(n+1)a^{displaystyle2}},;;;n eq -1,-2$
24.: $displaystyle int x^{displaystyle2}(ax+b)^{displaystyle n},dx=displaystyle... ...ystyle2}(ax+b)^{displaystyle n+1}}{(n+1)a^{displaystyle3}};,;n eq -1,-2,-3$
25.: $displaystyle int x^{displaystyle m}(ax+b)^{displaystyle n},dx=left{ eg... ... int x^{displaystyle m}(ax+b)^{displaystyle{n+1}},dx end{array} ight.$

INTEGRALS CONTAINING THE SQUARE ROOT OF ax+b

1.
2.: $displaystyle intdisplaystyle rac{x,dx}{displaystyle sqrt{ax+b}}=displaystyle rac{2(ax-2b)}{3a^{displaystyle2}}displaystyle sqrt{ax+b}$
3.: $displaystyle intdisplaystyle rac{x^{displaystyle2},dx}{displaystyle sq... ...le2}-4abx+8b^{displaystyle 2})}{15a^{displaystyle3}}displaystyle sqrt{ax+b}$
4.
5.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle 2}displaystyle sqr... ...rac{a}{2b}displaystyle intdisplaystyle rac{dx}{xdisplaystyle sqrt{ax+b}}$
6.: $displaystyle intdisplaystyle sqrt{ax+b},dx=displaystyle rac{2displaystyle sqrt{(ax+b)^{displaystyle3}}}{3a}$
7.: $displaystyle int xdisplaystyle sqrt{ax+b},dx=displaystyle rac{2(3ax-2b)}{15a^{displaystyle2}}displaystyle sqrt{(ax+b)^{displaystyle3}}$
8.: $displaystyle int x^{displaystyle2}displaystyle sqrt{ax+b},dx=displaystyl... ...aystyle 2})}{105a^{displaystyle3}}displaystyle sqrt{(a+bx)^{displaystyle3}}$
9.
10.: $displaystyle intdisplaystyle rac{displaystyle sqrt{ax+b}}{x^{displaysty... ...frac{a}{2}displaystyle intdisplaystyle rac{dx}{xdisplaystyle sqrt{ax+b}}$
11.: $displaystyle intdisplaystyle rac{x^{displaystyle m}}{displaystyle sqrt{... ...e intdisplaystyle rac{x^{displaystyle m-1}}{displaystyle sqrt{ax+b}},dx$
12.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle m}displaystyle sqr... ...yle intdisplaystyle rac{dx}{x^{displaystyle m-1}displaystyle sqrt{ax+b}}$
13.: $displaystyle int x^{displaystyle m}displaystyle sqrt{ax+b},dx=displaysty... ...}{(2m+3)a}displaystyle int x^{displaystyle m-1}displaystyle sqrt{ax+b},dx$
14.: $displaystyle intdisplaystyle rac{displaystyle sqrt{ax+b}}{x^{displaysty... ...yle intdisplaystyle rac{dx}{x^{displaystyle m-1}displaystyle sqrt{ax+b}}$
15.: $displaystyle intdisplaystyle rac{displaystyle sqrt{ax+b}}{x^{displaysty... ...e intdisplaystyle rac{displaystyle sqrt{ax+b}}{x^{displaystyle m-1}},dx$
16.: $displaystyle int(ax+b)^{displaystyle m/2},dx=displaystyle rac{2(ax+b)^{displaystyle(m+2)/2}}{a(m+2)}$
17.: $displaystyle int x(ax+b)^{displaystyle m/2},dx=displaystyle rac{2(ax+b)^... ...}-displaystyle rac{2b(ax+b)^{displaystyle(m+2)/2}}{a^{displaystyle2}(m+2)}$
18.: $egin{array}{lcl} displaystyle int x^{displaystyle2}(ax+b)^{displaystyle m... ...splaystyle2}(ax+b)^{displaystyle(m+2)/2}}{a^{displaystyle3}(m+2)} end{array}$
19.: $displaystyle intdisplaystyle rac{(ax+b)^{displaystyle m/2}}{x},dx=displ... ...m}+bdisplaystyle intdisplaystyle rac{(ax+b)^{displaystyle(m-2)/2}}{x},dx$
20.: $displaystyle intdisplaystyle rac{(ax+b)^{displaystyle m/2}}{x^{displayst... ...ma}{2b}displaystyle intdisplaystyle rac{(ax+b)^{displaystyle m/2}}{x},dx$
21.: $displaystyle intdisplaystyle rac{dx}{x(ax+b)^{displaystyle m/2}}=display... ...{1}{b}displaystyle intdisplaystyle rac{dx}{x(ax+b)^{displaystyle(m-2)/2}}$

INTEGRALS CONTAINING ax+b AND px+q

1.
2.
3.: $displaystyle intdisplaystyle rac{dx}{(ax+b)^{displaystyle 2}(px+q)}=disp... ...laystyle rac{p}{bp-aq}lnleft(displaystyle rac{px+q}{ax+b} ight) ight}$
4.: $displaystyle intdisplaystyle rac{x,dx}{(ax+b)^{displaystyle2}(px+q)}=di... ...(displaystyle rac{ax+b}{px+q} ight)-displaystyle rac{b}{a(ax+b)} ight}$
5.: $displaystyleegin{array}{l} displaystyle intdisplaystyle rac{x^{display... ...displaystyle rac{b(bp-2aq)}{a^{displaystyle2}}ln(ax+b) ight} end{array}$
6.: $displaystyleegin{array}{l} displaystyle intdisplaystyle rac{dx}{(ax+b)^... ...rac{dx}{(ax+b)^{displaystyle m}(px+q)^{displaystyle n-1}} ight} end{array}$
7.: $displaystyle intdisplaystyle rac{ax+b}{px+q},dx=displaystyle rac{ax}{p}+displaystyle rac{bp-aq}{p^{displaystyle2}}ln(px+q)$
8.: $displaystyle intdisplaystyle rac{(ax+b)^{displaystyle m}}{(px+q)^{displa... ...displaystyle m-1}}{(px+q)^{displaystyle n-1}},dx ight} end{array} ight.$

INTEGRALS CONTAINING THE SQUARE ROOT OF ax+b AND px+q

1.: $displaystyle intdisplaystyle rac{px+q}{displaystyle sqrt{ax+b}},dx=displaystyle rac{2(apx+3aq-2bp)}{3a^{displaystyle2 }}displaystyle sqrt{ax+b}$
2.
3.
4.: $displaystyle int(px+q)^{displaystyle n}displaystyle sqrt{ax+b},dx=displa... ...intdisplaystyle rac{(px+q)^{displaystyle n}}{displaystyle sqrt{ax+b}},dx$
5.: $displaystyle intdisplaystyle rac{(px+q)^{displaystyle n}}{displaystyle ... ...tdisplaystyle rac{(px+q)^{displaystyle n-1},dx}{displaystyle sqrt{ax+b}}$
6.: $displaystyle intdisplaystyle rac{displaystyle sqrt{ax+b}}{(px+q)^{displ... ...intdisplaystyle rac{dx}{(px+q)^{displaystyle n-1}displaystyle sqrt{ax+b}}$
7.: $displaystyle egin{array}{l} displaystyle intdisplaystyle rac{dx}{(px+q... ...frac{dx}{(px+q)^{displaystyle n-1}displaystyle sqrt{ax+b}} ight.end{array}$

INTEGRALS CONTAINING THE SQUARE ROOTS OF BOTH ax+b AND px+q

1.
2.
3.
4.
5.

INTEGRALS CONTAINING x²-a²

We assume x² > a²:

1.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}-a^{displaystyle2}}=displaystyle rac{1}{2a}lnleft(displaystyle rac{x-a}{x+a} ight);;$ or coth $^{displaystyle-1}displaystyle rac{x}{a}$
2.: $displaystyle intdisplaystyle rac{x,dx}{x^{displaystyle2}-a^{displaystyle2}}=displaystyle rac{1}{2}ln(x^{displaystyle2}-a^{displaystyle2})$
3.: $displaystyle intdisplaystyle rac{x^{displaystyle2},dx}{x^{displaystyle2... ...yle2}}=x+displaystyle rac{a}{2}lnleft(displaystyle rac{x-a}{x+a} ight)$
4.: $displaystyle intdisplaystyle rac{x^{displaystyle3},dx}{x^{displaystyle2... ...laystyle rac{a^{displaystyle2}}{2}ln(x^{displaystyle2}-a^{displaystyle2})$
5.: $displaystyle intdisplaystyle rac{dx}{x(x^{displaystyle2}-a^{displaystyle... ...aystyle rac{x^{displaystyle2}-a^{displaystyle2}}{x^{displaystyle2}} ight)$
6.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}(x^{displaystyle2}... ...tyle rac{1}{2a^{displaystyle3}}lnleft(displaystyle rac{x-a}{x+a} ight)$
7.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle3}(x^{displaystyle2}... ...aystyle rac{x^{displaystyle2}}{x^{displaystyle2}-a^{displaystyle2}} ight)$
8.: $displaystyle intdisplaystyle rac{dx}{(x^{displaystyle2}-a^{displaystyle2... ...tyle rac{1}{4a^{displaystyle3}}lnleft(displaystyle rac{x-a}{x+a} ight)$
9.: $displaystyle intdisplaystyle rac{x,dx}{(x^{displaystyle2}-a^{displaysty... ...splaystyle2}}=displaystyle rac{-1}{2(x^{displaystyle2}-a^{displaystyle2})}$
10.: $displaystyle intdisplaystyle rac{x^{displaystyle2},dx}{(x^{displaystyle... ...yle2})}+displaystyle rac{1}{4a}lnleft(displaystyle rac{x-a}{x+a} ight)$
11.: $displaystyle intdisplaystyle rac{x^{displaystyle3},dx}{(x^{displaystyle... ...aystyle2})}+displaystyle rac{1}{2}ln(x^{displaystyle2}-a^{displaystyle2})$
12.: $displaystyle intdisplaystyle rac{dx}{x(x^{displaystyle2}-a^{displaystyle... ...aystyle rac{x^{displaystyle2}}{x^{displaystyle2}-a^{displaystyle2}} ight)$
13.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}(x^{displaystyle2}... ...tyle rac{3}{4a^{displaystyle5}}lnleft(displaystyle rac{x-a}{x+a} ight)$
14.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle3}(x^{displaystyle2}... ...aystyle rac{x^{displaystyle2}}{x^{displaystyle2}-a^{displaystyle2}} ight)$
15.: $displaystyle intdisplaystyle rac{dx}{(x^{displaystyle2}-a^{displaystyle2... ...laystyle rac{dx}{(x^{displaystyle2}-a^{displaystyle2})^{displaystyle n-1}}$
16.: $displaystyle intdisplaystyle rac{x,dx}{(x^{displaystyle2}-a^{displaysty... ...le rac{-1}{2(n-1)(x^{displaystyle2}-a^{displaystyle2})^{displaystyle n-1}}$
17.: $displaystyle intdisplaystyle rac{dx}{x(x^{displaystyle2}-a^{displaystyle... ...aystyle rac{dx}{x(x^{displaystyle2}-a^{displaystyle2})^{displaystyle n-1}}$
18.: $displaystyle intdisplaystyle rac{x^{displaystyle m},dx}{(x^{displaystyl... ...splaystyle m-2},dx}{(x^{displaystyle2}-a^{displaystyle2})^{displaystyle n}}$
19.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle m}(x^{displaystyle2... ...x^{displaystyle m}(x^{displaystyle2}-a^{displaystyle2})^{displaystyle n-1}}$

Bernoulli and Euler's Numbers

Definition. The Bernoulli numbers are defined by

$egin{displaymath}egin{array}{lclrl} displaystyle rac{x}{e^x - x} &=& 1 - ... ...B_3x^6}{6!}+ cdots &mbox{$ ert x ert < pi$}\ end{array}end{displaymath}$

Definition. The Euler numbers are defined by

$egin{displaymath}egin{array}{lccclrl} mbox{sech}(x) &=& displaystyle rac... ...E_3x^6}{6!}+ cdots &mbox{$ ert x ert < pi$}\ end{array}end{displaymath}$

Some Important Formulas.

1.: $B_n = displaystyle rac{(2n)!}{2^{2n-1}pi^{2n}} left(1 + displaystyle rac{1}{2^{2n}} + displaystyle rac{1}{3^{2n}} + cdotsight)$
2.: $B_n = displaystyle rac{2(2n)!}{(2^{2n-1}-1)pi^{2n}} left(1 - displaystyle rac{1}{2^{2n}} + displaystyle rac{1}{3^{2n}} - cdotsight)$
3.: $E_n = displaystyle rac{2^{2n+2}(2n)!}{pi^{2n+1}} left(1 - displaystyle rac{1}{3^{2n+1}} + displaystyle rac{1}{5^{2n+1}} - cdotsight)$
4.: For large n, we have
$egin{displaymath}B_n sim 4 n^{2n} (pi e)^{-2n} sqrt{npi} = 4 left(displaystyle rac{n}{pi e}ight)^{2n} sqrt{n pi}end{displaymath}$

Below you may find some values of the Bernoulli numbers:

and Euler numbers

INTEGRALS CONTAINING ax²+bx+c

1.: $displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}=left{eg... ...{2ax+b+displaystyle sqrt{b^{displaystyle2}-4ac}} ight) end{array} ight.$
2.: $displaystyle intdisplaystyle rac{x,dx}{ax^{displaystyle2}+bx+c}=display... ... rac{b}{2a}displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}$
3.: $displaystyle intdisplaystyle rac{x^{displaystyle2},dx}{ax^{displaystyle... ...playstyle2}}displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}$
4.: $displaystyle intdisplaystyle rac{x^{displaystyle m}}{ax^{displaystyle2}+... ...le intdisplaystyle rac{x^{displaystyle m-1},dx}{ax^{displaystyle2}+bx+c}$
5.: $displaystyle intdisplaystyle rac{dx}{x(ax^{displaystyle2}+bx+c)}=display... ... rac{b}{2c}displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}$
6.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}(ax^{displaystyle2... ...playstyle2}}displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}$
7.: $egin{array}{ll} displaystyle intdisplaystyle rac{dx}{x^{displaystyle n}... ...laystyle rac{dx}{x^{displaystyle n-2}(ax^{displaystyle2}+bx+c)} end{array}$
8.: $displaystyle intdisplaystyle rac{dx}{(ax^{displaystyle2}+bx+c)^{displays... ...playstyle2}}displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}$
9.: $displaystyle intdisplaystyle rac{x,dx}{(ax^{displaystyle2}+bx+c)^{displ... ...playstyle2}}displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}$
10.: $displaystyle intdisplaystyle rac{x^{displaystyle2},dx}{(ax^{displaystyl... ...playstyle2}}displaystyle intdisplaystyle rac{dx}{ax^{displaystyle2}+bx+c}$
11.: $egin{array}{ll} displaystyle intdisplaystyle rac{x^{displaystyle m},dx... ...isplaystyle m-2},dx}{(ax^{displaystyle2}+bx+c)^{displaystyle n}} end{array}$
12.: $egin{array}{ll} displaystyle intdisplaystyle rac{x^{displaystyle2n-1},... ...isplaystyle2n-2},dx}{(ax^{displaystyle2}+bx+c)^{displaystyle n}} end{array}$
13.: $egin{array}{ll} displaystyle intdisplaystyle rac{dx}{x(ax^{displaystyle... ...splaystyle intdisplaystyle rac{dx}{x(ax^{displaystyle2}+bx+c)} end{array}$
14.: $egin{array}{ll} displaystyle intdisplaystyle rac{dx}{x^{displaystyle2}(... ...isplaystyle rac{dx}{x(ax^{displaystyle2}+bx+c)^{displaystyle2}} end{array}$
15.: $egin{array}{lcl} displaystyle intdisplaystyle rac{dx}{x^{displaystyle m... ...{x^{displaystyle m-1}(ax^{displaystyle2}+bx+c)^{displaystyle n}} end{array}$

INTEGRALS CONTAINING "xⁿ+aⁿ" or "xⁿ-aⁿ"

1.: $displaystyle intdisplaystyle rac{dx}{xleft(x^{displaystyle n}+a^{displa... ...isplaystyle rac{x^{displaystyle n}}{x^{displaystyle n}+a^{displaystyle n}}$
2.: $displaystyle intdisplaystyle rac{x^{displaystyle n-1},dx}{x^{displaysty... ...displaystyle rac{1}{n}lnleft(x^{displaystyle n}+a^{displaystyle n} ight)$
3.: $displaystyle intdisplaystyle rac{x^{displaystyle m},dx}{left(x^{displa... ...n},dx}{left(x^{displaystyle n}+a^{displaystyle n} ight)^{displaystyle r}}$
4.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle m}left(x^{displays... ...yle m-n}left(x^{displaystyle n}+a^{displaystyle n} ight)^{displaystyle r}}$
5.: $displaystyle intdisplaystyle rac{dx}{xdisplaystyle sqrt{x^{displaystyle... ...ystyle n}+a^{displaystyle n}}+displaystyle sqrt{a^{displaystyle n}}} ight)$
6.: $displaystyle intdisplaystyle rac{dx}{xleft(x^{displaystyle n}-a^{displa... ...tyle rac{x^{displaystyle n}-a^{displaystyle n}}{x^{displaystyle n}} ight)$
7.: $displaystyle intdisplaystyle rac{x^{displaystyle n-1},dx}{x^{displaysty... ...displaystyle rac{1}{n}lnleft(x^{displaystyle n}-a^{displaystyle n} ight)$
8.: $displaystyle intdisplaystyle rac{x^{displaystyle m},dx}{left(x^{displa... ...,dx}{left(x^{displaystyle n}-a^{displaystyle n} ight)^{displaystyle r-1}}$
9.: $displaystyle intdisplaystyle rac{dx}{x^{displaystyle m}left(x^{displays... ...yle m}left(x^{displaystyle n}-a^{displaystyle n} ight)^{displaystyle r-1}}$
10.: $displaystyle intdisplaystyle rac{dx}{xdisplaystyle sqrt{x^{displaystyle... ...splaystyle sqrt{displaystyle rac{a^{displaystyle n}}{x^{displaystyle n}}}$
11.: $displaystyle egin{array}{lcl} displaystyle intdisplaystyle rac{x^{disp... ...cosdisplaystyle rac{(2k-1)pi}{2m}+a^{displaystyle2} ight) end{array}$
where .
12.: $displaystyle egin{array}{lcl} displaystyle intdisplaystyle rac{x^{disp... ...^{displaystyle2m-p}}{ln(x-a)+(-1)^{displaystyle p}ln(x+a)} end{array}$
where .
13.: $displaystyle egin{array}{ll} displaystyle intdisplaystyle rac{x^{displ... ...(-1)^{displaystyle p-1}ln(x+a)}{(2m+1)a^{displaystyle2m-p+1}} end{array}$
where .
14.: $displaystyleegin{array}{ll} displaystyle intdisplaystyle rac{x^{displa... ...} }+displaystyle rac{ln(x-a)}{(2m+1)a^{displaystyle2m-p+1}} end{array}$
where .

About the Author:

Nivedh Iyer (3456)

Olaaa!! Perrrfect answer.

bad job dude!! I dont approve of this answer!

1 [764 rates]

total posts: 1236
Offline

this article: 45 points (with 9 Olaaa!! Perrrfect answer.

Olaaa!! Perrrfect answer.

in 9 votes ) [?]

You have to be logged on to rate


	comment by Rakesh OFFLINE (posted on 16 Aug 2007 16:07:42 IST)
	good basics

	comment by Rahul Udiaver (posted on 16 Aug 2007 17:58:12 IST)
	are these from Arihant???

	comment by SINDHURA KADIYALA (posted on 16 Aug 2007 19:23:13 IST)
	good job............

	comment by Nivedh Iyer (posted on 16 Aug 2007 19:54:09 IST)
	no these r not from ARIHANT..................!!!!!!!!!!

	comment by Nivedh Iyer (posted on 17 Aug 2007 15:03:34 IST)
	thanx for the ratezzzz..................!!!!!!!!!!

	comment by nitin singh (posted on 17 Aug 2007 17:53:51 IST)
	coll buddy rockin basics but we hve it...

	comment by nitin singh (posted on 17 Aug 2007 17:54:12 IST)
	coll buddy rockin basics but we hve it...

	comment by Nivedh Iyer (posted on 18 Aug 2007 10:41:31 IST)
	thanx............!!!!!!

	comment by Ajay Raj (posted on 18 Aug 2007 12:01:20 IST)
	Well Done

	comment by prathima (posted on 18 Aug 2007 16:03:11 IST)
	THANKU

	comment by Nivedh Iyer (posted on 18 Aug 2007 21:56:09 IST)
	thanx.......................................!!!!!!!!!

	comment by Nivedh Iyer (posted on 19 Aug 2007 20:50:58 IST)
	ne more commentzzz plzzzzzzzzzzzzzz

	comment by M V S SIVA PRASAD (posted on 3 Apr 2008 03:15:12 IST)
	PLZZZZZZZZZZZZZZZZZZZZZZZZZZZ SEEEEEEEEEEEEE THIS THIS IS SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOD

Sponsored Links