Hi, cot = 1/tan cot(60) = 1/tan(60) = θ radians sin θ cos θ tan θ 0° 0 0 1 0 30° π/6 1/2 √3/2 √3/3 45° π/4 √2/2 √2/2 1 60° π/3 √3/2 1/2 √3 90° π/2 1 0 ─