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Prove that sintheta+s in3theta+sin5theta...

Prove that `sintheta+s in3theta+sin5theta++sin(2n-1)theta=(sin^2ntheta)/(sintheta)dot`

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`sin theta+sin 3 theta+sin 5theta+.....+sin(2pi-1)theta`
`=(sin[n((2theta)/(2))])/(sin((2 theta)/(2)))sin((theta+(2n-1)theta)/(2))=(sin^(2)n theta)/(sin theta)`
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