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prove that : tan(alpha)+2 tan(2alpha) +4...

prove that : `tan(alpha)+2 tan(2alpha) +4(tan4alpha)+8cot(8alpha) = cot(alpha)`

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prove that :tan(alpha)+2tan(2 alpha)+4(tan4 alpha)+8cot(8 alpha)=cot(alpha)

Prove that tan alpha + 2tan 2alpha + 4tan 4alpha + 8cot 8alpha = cot alpha .

Prove that: tan alpha+2tan2 alpha+4tan4 alpha+8cot8 alpha=cot alpha

tan alpha+2tan2 alpha+4tan4 alpha+8cot8 alpha=cot alpha

tan alpha+2tan2alpha+4tan4alpha+8cot8alpha is equal to

tanalpha+2tan2alpha+4tan4alpha+8cot8alpha=?

Prove that cotA-tanA=2cot2A and deduce that tan alpha+2tan2alpha+4tan4alpha+8cot8alpha=cot alpha

tan alpha+2tan2 alpha+4tan4 alpha+8cot8 alpha is equal to :