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Mathematics 19 Online
OpenStudy (anonymous):

intergral sin^2(2x)

OpenStudy (anonymous):

You have to use the differentiation and integration formula

OpenStudy (turingtest):

the what?

OpenStudy (turingtest):

\[\sin^2x=\frac12(1-\cos(2x))\]

OpenStudy (anonymous):

that is why i put 2x so you cant copy from internet

OpenStudy (turingtest):

I didn't copy anything, extrapolate

OpenStudy (turingtest):

\[\sin^2(2x)=?\]based on the formula I gave you

OpenStudy (anonymous):

Yes TT knows what he's doing :)

OpenStudy (anonymous):

=4sin^2(x)cos^2(X)

OpenStudy (raden):

I LOVE INTEGRAL convert sin^2(2x) to (1-cos(4x))/2

OpenStudy (turingtest):

let u=2x\[\sin^2u=\frac12(1-\cos(2u))\]sub back in for u

OpenStudy (turingtest):

and you get the above by Rad...

OpenStudy (anonymous):

[2x-sin(2x)cos(2x)]/4

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