prove 1/1+sin A+ 1/1-sin A =2 sec square
A
Answers
Answered by
1
Step-by-step explanation:
LHS =left hand side, RHS =right hand side
LHS=11+sinθ+11−sinθ
=1−sinθ+1+sinθ(1+sinθ)(1−sinθ)->Common Denominator
=1−sinθ+1+sinθ(1+sinθ)(1−sinθ)
=21−sin2x
=2cos2x
=2⋅1cos2x
=2sec2x
=RHS
Similar questions