`tanalpha+2tan2alpha+4tan4alpha+8cot8alpha=cotalpha`

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

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

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

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

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

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

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

tan alpha+2tan2 alpha+4tan4 alpha+8tan8 alpha+16tan16 alpha+32cot32 alpha. is equal to: (1)cot alpha(2)tan alpha.(3)cos alpha(4)sin alpha