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If tan (alpha + theta ) = n* tan ( alph...

If ` tan (alpha + theta ) = n* tan ( alpha - theta ) , "then " (n +1) sin 2 theta = `

A

`(n+1) sin 2 alpha `

B

`(n-1) sin 2 alpha `

C

`(n+1) sin 2 beta `

D

`(n-1) sin 2 beta `

Text Solution

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The correct Answer is:
B
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