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Let f(theta)=(1+sin^2 theta)(2-sin^2 the...

Let `f(theta)=(1+sin^2 theta)(2-sin^2 theta)` then for all values

A

`f(theta)gt 9/4`

B

`f(theta) le2`

C

`f(theta) gt 11/4`

D

`2lef(theta)le9/4`

Text Solution

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The correct Answer is:
D
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