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Number of solutions to the equation 2^(s...

Number of solutions to the equation `2^(sin^2 x) +5.2^(cos^2 x) = 7,` in the interval `[-pi,pi],` is

A

zero

B

1

C

finitely many

D

infinitely many

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The correct Answer is:
D
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MCGROW HILL PUBLICATION-QUADRATIC EQUATIONS-Exercise ( Level 1 (single correct answer type questions))
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