Math Precalculus

Question

For the following point, let θ be the angle in standard position whose terminal side contains the point. Compute cos(θ) and sin(θ).
Q(5, 12)

Answer 1

c²  = a² + b²

c² = 5² + 12²

c² = 25 + 144

c² = 169

c = 13

cosθ = 5/13

sinθ = 12/13