# trig

posted by
**Devon**
.

find the exact solutions (è in degrees)

sin^2è+2cosè=-2

change the sin^2 to 1-cos^2, then rearrage the equation into quadratic form, use the quadratic equaion.

posted by
**Devon**
.

find the exact solutions (è in degrees)

sin^2è+2cosè=-2

change the sin^2 to 1-cos^2, then rearrage the equation into quadratic form, use the quadratic equaion.