# trig

posted by
**Anonymous**
.

determine wheather each of the following is an identity or not prove it

1. cos^2a+sec^2a=2+sina

2. cot^2a+cosa=sin^2a

posted by
**Anonymous**
.

determine wheather each of the following is an identity or not prove it

1. cos^2a+sec^2a=2+sina

2. cot^2a+cosa=sin^2a