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[" 214."tan alpha+2tan2 alpha+4tan4 alph...

[" 214."tan alpha+2tan2 alpha+4tan4 alpha+8cot8 alpha=7],[[" (a) "tan alpha," (b) "tan2 alpha],[" (c) "cot alpha," (d) "cot2 alpha]]

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

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

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

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

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

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

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

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

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