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

`3^(sin2x + 2cos^(2)x) + 3^(1 - sin2x + 2sin^(2)x) = 28` is satisfied by :

A

those values of x for which `tanx = -1`

B

those values of x for which `tanx = -1//2`

C

those values of x for which `cosx = 1/2`

D

those values of x for which `tanx = 1.`

Text Solution

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The correct Answer is:
A
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