Question

Question #6b251

Answer 1

`1 - tan^2 35° + csc^2 55°`

`= 1 - tan^2 35° +csc^2 (90-35)°`

`= 1 - tan^2 35° +sec^2 35°`

`= 1 +sec^2 35^@- tan^2 35°`

`=1+1=2`