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Maximum and minimum value of 2sin^2theta...

Maximum and minimum value of `2sin^2theta-3sintheta+2` is

A

`(1)/(4),-(7)/(4)`

B

`(1)/(4),(21)/(4)`

C

`(21)/(4),-(3)/(4)`

D

`7,(7)/(8)`

Text Solution

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The correct Answer is:
A
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