[(x^2)/(squareroot:(2x - x^2) ]dx

do I do u-substitution?

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- June 6th 2008, 05:56 PMkhuezystuck on integration
[(x^2)/(squareroot:(2x - x^2) ]dx

do I do u-substitution? - June 6th 2008, 06:01 PMgalactus

You could let

Make the subs and get:

Now, we can let

Make the subs and it whittles down to:

Resub for

That gives us:

Resub for and get:

- June 6th 2008, 06:05 PMMathstud28
- June 6th 2008, 06:26 PMkhuezythanks
I got the integral of (sin(t) +1)^2

then that becomes sin^2(t) + 2sin(t) + 1

the integral of sin^2(t)

is 1/2[1+cos(2t)

how do I make that in terms of 't'? - June 6th 2008, 06:45 PMkhuezyHow did you get to there?
You coul

How did you get to there?

how does sin^2(t) go to 1/2sintcost?