# Posts by Chiquesta

Total # Posts: 3

**Math**

Express sin^6theta in multiples of costheta and hence evaluate the integral of sin^6theta from 0 to pi/2. Thanks in advance! :)

*December 17, 2011*

**Math - complex numbers**

Sorry, yes I meant from 0 to pi/2 for the last two questions.

*December 17, 2011*

**Math - complex numbers**

These questions are related to de moivre's theorem: z^n + 1/z^n = 2cosntheta z^n - 1/z^n = 2 isin ntheta 1. Express sin^5theta in the form Asintheta + Bsin3theta + Csin5theta and hence find the integral of sin^5theta. 2. Express sin^6theta in multiples of costheta and ...

*December 17, 2011*

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