Biology, asked by sudeee62898, 11 months ago

please answer my question


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Answers

Answered by TonyStark0987t
0

Answer:

This is a maths questions and you mark it as biology......

Answered by maheswarikumar
1

Answer:

Solving from right

tan A + 2tan2A + 4tan4A + 8cot8A = tan A + 2tan2A + 4tan4A + 8/tan8A

Explanation:

Solving from right

tan A + 2tan2A + 4tan4A + 8cot8A = tan A + 2tan2A + 4tan4A + 8/tan8A

= tan A + 2tan2A + 4tan4A + 8(1-tan24A)/2tan4A

= tan A + 2tan2A + [{4tan4A(tan4A)} + 4 (1-tan24A)]/tan4A

= tan A + 2tan2A + [4tan24A + 4 - tan24A]/tan4A  

= tan A + 2tan2A + 4/tan4A

Proceeding as above, we will reach to

tan A + 2tan2A + 4tan4A + 8cot8A = 1/tanA = cotA

Hence proved.

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