Question

plz solve this..i shall ne very thanks full to you
Tommorow is my preboard

Answer 1

8.a.
LHS=1/(1+sin theta)+1/(1-sin theta)
=(1-sin theta +1+sin theta )/((1+sin theta)(1-sin theta))->Common
Denominator=(1-cancelsin theta +1+cancelsin theta )/((1+sin theta)(1-sin theta))
=2/(1-sin^2x)=2/cos^2x=2*1/cos^2x=2sec^2x=RHS