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(1+sec 2 theta)*sqrt(sec^(2) theta-1)= A...

`(1+sec 2 theta)*sqrt(sec^(2) theta-1)=` A)`2 sec theta`B)`sec 2 theta`C)`2 tan theta`D)`tan 2 theta`

A

`2 sec theta`

B

`sec 2 theta`

C

`2 tan theta`

D

`tan 2 theta`

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The correct Answer is:
D
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