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The complete solution of the equation 7c...

The complete solution of the equation `7cos^2 x +sin x cos x - 3=0` is given by

A

`n pi+(pi)/(2)(n in l)`

B

`n pi-(pi)/(4)(n in l)`

C

`n pi+"tan"^(-1)((4)/(3))(n in l)`

D

`n pi+(3pi)/(4),k pi+"tan"^(-1)((4)/(3))(k,n in l)`

Text Solution

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The correct Answer is:
D
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