QUESTION 1: Find exact value of trigonometric function tan(5Π/3)
QUESTION 2: Find the lengths of all sides of right triangle given below if its area is 225

QUESTION 3: Prove (sin θ + cosθ)2 = 1 + sin (2θ)
QUESTION 4: Find cos θ, tan θ, cot θ if sin θ = 5/13 and Π/2 < θ < Π