sin alpha =(2pq)/(p^2+q^2) => sec alpha ...

`sin alpha =(2pq)/(p^2+q^2) => sec alpha - tan alpha=`.......... A) `(p-q)/(p+q)` B) `(pq)/(p^(2) +q^(2))` C) `(p+q)/(p-q)` D) `(pq)/(P+q)`

A

`(p-q)/(p+q)`

B

`(pq)/(p^(2) +q^(2))`

C

`(p+q)/(p-q)`

D

`(pq)/(P+q)`

Text Solution

Verified by Experts

The correct Answer is:

A

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