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If x= npi+(-1)^(n)alpha , n in I and x=...

If ` x= npi+(-1)^(n)alpha , n in I and x=npi+(-1)^(n)beta ` are the roots of ` 4 cos x -3 sec x =tan x `, then `4(sin alpha + sin beta )` is

A

`-1`

B

1

C

2

D

None of these

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The correct Answer is:
A
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ARIHANT MATHS-TRIGONOMETRIC EQUATIONS AND INEQUATIONS-Exercise (Single Option Correct Type Questions)
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