1.

tan(x/2)/2 + tan(x/4)/4 + ....... + tan(x/2^n)/2^n = cot(x/2^n)/2^n - cotx by principle of mathematical induction

Answer»

tan(x/2)/2 + tan(x/4)/4 + ....... + tan(x/2^n)/2^n = cot(x/2^n)/2^n - cotx by principle of mathematical induction



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