Question

How do I verify tanx/secx+cotx/cscx=sinx+cosx?

Answer 1

`LHS=tanx/secx+cotx/cscx`

`=sinx/cosx xx 1/secx+cosx/sinx xx 1/cscx`

`=sinx/cancelcosx xx cancelcosx+cosx/cancelsinx xx cancelsinx`

`=sinx+cosx=RHS`