Find the exact values (precalc)

Question

Find the exact values (fractions) for the trigonometric expression given that sin u = 4/5 and cos v = -7/25 (both u and v are in II quadrant)

Answer 1

5 at an angle of 126.87° for u

and

25 at an angle of 106.26° for v

Would be the Trig expressions given, since you didn't tell us what it is...