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If A=sin^(2)x+cos^(4)x, then for all rea...

If `A=sin^(2)x+cos^(4)x`, then for all real x

A

`3/4 leAle1`

B

`13/16 leAle1`

C

`1 leAle2`

D

`3/4 leAle13/16`.

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