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(a+2)sinalpha+(2a-1)cosalpha=(2a+1)iftan...

`(a+2)sinalpha+(2a-1)cosalpha=(2a+1)iftan alpha` is

A

`3//4`

B

`4//3`

C

`2a//(a^(2)+1)`

D

`2a//(a^(2)-1)`

Text Solution

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The correct Answer is:
B, D
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