Value of sec^(2)theta-(sin^(2)theta-2s...

Value of `sec^(2)theta-(sin^(2)theta-2sin^(4)theta)/(2cos^(4)theta-cos^(2)theta)` is

A

1

B

2

C

`-1`

D

0

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sec^(2)theta-(sin^(2)theta-2sin^(4)theta)/(2cos^(4)theta-cos^(2)theta)=1

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