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What is (1-sin^(2)theta)(1+tan^(2)theta)...

What is `(1-sin^(2)theta)(1+tan^(2)theta)` equal to ?

A

`sin^(2)theta`

B

`cos^(2)theta`

C

`tan^(2)theta`

D

1

Text Solution

Verified by Experts

The correct Answer is:
D
`(1-sin^(2)theta)(1+tan^(2)theta)=cos^(2)theta.sec^(2)theta=cos^(2)theta.(1)/(cos^(2)theta)=1`
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