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The equation 3^(sin2x+2cos^(2)x)+3^(1-si...

The equation `3^(sin2x+2cos^(2)x)+3^(1-sin2x+2sin^(2)x) = 28` is satisfied for the values of x given by :

A

`"cos" x = 0, "tan" x = -1`

B

`"tan" x = -1, "cos"x =1`

C

`"tan" x =1, "cos" x =0`

D

none of these

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The correct Answer is:
A
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