Question

integrate sin^3(x).

Answer 1

How to?

Answer 2

\[\int \sin^3 x dx \implies \int (\sin^2 x)\sin x dx \implies \int (1 - \cos^2 x)\sin x dx\]
\[\implies \int (\sin x -\sin x \cos^2 x) dx\]
do you see it now?

Answer 3

Oh, ok I know where to go from here.

Answer 4

Thanks

Answer 5

wonderful ^_^

Answer 6

welcome

Answer 7

why not try this one !!!!!
\[\Large \sin^3(x)=\frac{1}{4}(3\sin(x)-\sin(3x))\]
everything is Linear !!!

Answer 8

lol :P

Answer 9

How'd you get that?

Answer 10

im thinking that's trig identity

Answer 11

yes it is trigonometric identity :)

Answer 12

Cool