integrate sin^4(x)

hey guys im trying to integrate sin^4(x) can someone check over this and tell me if its correct:


= sin(4x)/32 - sin(2x)/4 + 3x/8

is that the correct answer for the integration of sin^4(x)

Hello,

Quote:

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Originally Posted by quickzxxx

hey guys im trying to integrate sin^4(x) can someone check over this and tell me if its correct:

= sin(4x)/32 - sin(2x)/4 + 3x/8

is that the correct answer for the integration of sin^4(x)

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your answer is correct (don't forget the integration constant !)

You don't have to use de Moivre's formula to solve this.