1.

If7 cos ^(2) x + sin x cos x - 3then x =

Answer»

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

Answer :A::B


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