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The range of cos^(2) x + sin^(4) x is...

The range of `cos^(2) x + sin^(4) x ` is

A

`[(1)/(2), 1]`

B

`[1, (3)/(2)]`

C

`[(3)/(2), 2]`

D

`[(3)/(4), 1]`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-PERIODICITY AND EXTREME VALUES-Practice Sheet (Exericise-I) Level-II (Straight Objective Type Questions)
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  15. sin^(2) x + 4 sin x+5 in [k, 5k ] rArr k =

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