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Prove that: sec^(2) (tan^(-1)2) + "cosec...

Prove that: `sec^(2) (tan^(-1)2) + "cosec"^(2)(cot^(-1)3)=15`.

A

15

B

10

C

-15

D

-10

Text Solution

Verified by Experts

The correct Answer is:
A
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