What is the value of [(sin7x- sin5x)/ (c...

What is the value of `[(sin7x- sin5x)/ (cos 7x + cos 5x)]- [(cos 6x-cos 4x)/ (sin 6x + sin 4x)]`?
`[(sin7x- sin5x)/ (cos 7x + cos 5x)]- [(cos 6x-cos 4x)/ (sin 6x + sin 4x)]`` का मान क्या है?

A

1

B

`2 tan x`

C

`tan 2 x`

D

`tan (3x//2)`

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The correct Answer is:

B

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