# trig

posted by
**Anonymous**
.

Angle x is in the second quadrant and angle y is in the first quadrant such that sinx=5/13 and cosy=3/5.

a) Determine an exact value for cosx

b) Determine an exact value for siny

posted by
**Anonymous**
.

Angle x is in the second quadrant and angle y is in the first quadrant such that sinx=5/13 and cosy=3/5.

a) Determine an exact value for cosx

b) Determine an exact value for siny