Question

If point (3, -8) lies on the terminal side of an angle A in standard position, find:

a) sinA

b) tanA

Answer 1

3^2 + 8^2 = h^2
9 + 64 = h^2
73 = h^2
h = sqrt 73

a) sin A = -8/sqrt(73)

b) tan A = -8/3

Answer 2

if 0 is an angle in standard position and its terminal side passes through the point (-3,2) find the exact value of csc 0