Integration of sin3x (1 Viewer)

[Newberry]

thanks, that was what i was trying to do, but i wasnt sure if you could multiply 2cos^2x by cosx, but apparently you can. thnx again

 

[Mountain.Dew]

a pleasure

 

[YBK]

actually we are all wrong. it was a simple error, when you integrate sinx, you get -cosx, thats where i went wrong, i integrated sinx to equal cosx.

integral of sinx x is cosx

but integral of cos x is -sinx

 

[icycloud]

integral of sinx x is cosx

but integral of cos x is -sinx

It's the other way around YBK.

 

[YBK]

It's the other way around YBK.

OOPS!
We only did differentiation at school... that's what I was thinking of