Question

tanA.sinA+cosA=secA how you prove it

Answer 1

Here is your ans. Hope this will help you

Answer 2

We have,

=> tanA.sinA + cosA = sec A

Solving L.H.S.

=> tanA.sinA + cosA

=> 1/cosA(sin²A + cos²A)

=> secA
Q.E.D.