1.

If 2 sin ^(3) x = cos xthen x =

Answer»

`X = N pi + (pi)/(4), n in Z`
`x = n pi + (pi)/( 3), n in Z`
`x = n pi + (pi)/( 2), n in Z`
` x = n pi + (pi)/( 6) , n in Z`

ANSWER :A


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