- #1
brandon26
- 107
- 0
Please help me prove this identity:
1/(cosA+sinA) + 1/(cosA-sinA) = tan2AcosecA
I got as far as LHS= 2cosA/cos^2A - sin^2A.
I can't go any further, please help!
1/(cosA+sinA) + 1/(cosA-sinA) = tan2AcosecA
I got as far as LHS= 2cosA/cos^2A - sin^2A.
I can't go any further, please help!