Question

Question #c31b3

Answer 1

`LHS=[(tanx+secx+1)(tanx-secx +1)]/tanx`

`=[(tanx+1)^2-sec^2x]/tanx`

`=[tan^2x+1+2tanx-sec^2x]/tanx`

`=[sec^2x+2tanx-sec^2x]/tanx`

`=[2tanx]/tanx`

`=2=RHS`