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Prove that: tan alpha+2tan2 alpha+4tan4 ...

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

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Prove that: t a nalpha+2tan2alpha+4tan4alpha+8cot8alpha=cotalpha

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Prove that: t a nalpha+2tan2alpha+4tan4alpha+8cot8alpha=cotalpha

Prove that: t a nalpha+2tan2alpha+4tan4alpha+8cot8alpha=cotalpha

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

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

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

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

using cotA-tanA=2cot2A deduce that tanalpha+tan2 alpha+4tan4alpha+8cot8alpha=cotalpha

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