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The maximum and minimum values of [4 cos...

The maximum and minimum values of `[4 cos x^(2)cos ((pi)/(3)+ x^(2))cos ((pi)/(3)-x^(2))]` respectively are-

A

`1 and (-1)`

B

`2 and (-2)`

C

`3 and (-3)`

D

`4 and (-4)`

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The correct Answer is:
A
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