Question

Plz show how to prove this​

Answer 1

Here...

I hope it helped...

Mr. professor...

Answer 2

Step-by-step explanation:

Given,

cos A / (1+ sin A) + (1+sinA)/cos A

on taking the LHS we get,

={cos²A+(1+sinA)²}/cosA.(1+sinA)

combining the like terms and adding

also we know that, use sin²A+cos²A=1

= (1+1+2 sinA)/cosA(1+sinA)

=2(1+sinA)/cosA(1+sinA)

=2/cosA

=2secA

Hence Proved