math (trig)
posted by aziiancaligirl .
Prove:
sin^2(x/2) = csc^2x  cot^2x / 2csc^2(x) + 2csc(x)cot(x)
On the right, factor the numberator as a difference of two perfect squares. In the denominator, factor out 2cscx.
You ought to prodeed rather quickly to the proof.
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