Question

Prove the following identities: 1/1+sinθ + 1/1-sinθ = 2sec2θ

Answer 1

Step-by-step explanation:

LHS:

1/1+sinø + 1/1-sinø

1-sinø + 1 + sinø /1-sin²ø (taking 1-sin²ø as lcm)

2/cos²ø

2sec²ø=RHS (PROVED)