# Precalc

posted by
**Rebekah**
.

For #1-3, an angle of rotation and ( x prime, y prime) coordinates are given. find the (x,y) coordinates?

1. angle= 30 degress, ( root 3, 2)

2. angle= 60 degrees, (-1,1)

3. angle = 45 degrees, ( root 2, - root2)