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If "cosec" theta =[(tan^(2) [(alpha - pi...

If `"cosec" theta =[(tan^(2) [(alpha - pi)//4]-1)/(tan^(2)[(alpha-pi//4)]+1)+ cos ""(alpha)/(2) cot 4 alpha ] sec ""(9alpha)/2 " then" theta = `

A

`alpha `

B

`2alpha `

C

`pi//2-2 alpha `

D

`4 alpha `

Text Solution

Verified by Experts

The correct Answer is:
D
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