Know and be able to use exact values of sinθ\sin{θ}sinθ, cosθ\cos{θ}cosθ and tanθ\tan{θ}tanθ for θ=0,π6,π4,π3θ = 0, \dfrac{\pi}{6}, \dfrac{\pi}{4}, \dfrac{\pi}{3}θ=0,6π,4π,3π, π\piπ and multiples thereof and sinθ\sin{θ}sinθ, cosθ\cos{θ}cosθ for θ=π2θ = \dfrac{\pi}{2}θ=2π and multiples thereof.