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Given A=sin ^(2) theta+cos ^(4) theta th...

Given `A=sin ^(2) theta+cos ^(4) theta` then for all real `theta`

A

`1le Ale 2`

B

`(3)/(4)le Ale 1`

C

`0le Ale 1`

D

`(1)/(4)le Ale (1)/(2)`

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