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यदि व्यंजक cos^(2) x - cos x + (5)/(4) क...

यदि व्यंजक `cos^(2) x - cos x + (5)/(4)` का `x in [(pi)/(2), (3pi)/(2)]` के लिए अधिकतम एवं न्यूनतम मान M तथा m है, तो (m + M) का मान है

A

`(9)/(2)`

B

`(13)/(4)`

C

`(17)/(4)`

D

`(15)/(4)`

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
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