If 7 cos ^(2) x + sin x cos x - 3 then...

If ` 7 cos ^(2) x + sin x cos x - 3 ` then x =

A

`x = n pi + (3 pi)/(4), n in Z`

B

`x = k pi + tan^(-1) ((4)/(3)), k in Z`

C

`x = k + tan^(-1) ((4)/(3)) , k in Z`

D

`x = n pi + (pi)/(3), n in Z`

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The correct Answer is:

A, B

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