Prove that 1/2 tan (x/2)+1/4tan(x/4)+...+(1/2n )tan (x/2n )=(1/2n )cot(x/2 n ) - cotx for all n (- N and 0<x<(pi/2).

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Prove that1/2tan (x/2)+1/4tan(x/4)+...+(1/2n)tan (x/2n)=(1/2n)cot(x/2n) - cotx for all n (- N and 0

Asked byaruch
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1/2tan (x/2)+1/4tan(x/4)+...+(1/2n)tan (x/2n)=(1/2n)cot(x/2n) - cotx for all n (- N and 0

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Prove that1/2tan (x/2)+1/4tan(x/4)+...+(1/2n)tan (x/2n)=(1/2n)cot(x/2n) - cotx for all n (- N and 0

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