Here is a sketch of the curve y=sinx∘y = \sin x^\circy=sinx∘ for 0≤x≤3600 \leq x \leq 3600≤x≤360
Given that sin40∘=0.64\sin 40^\circ = 0.64sin40∘=0.64 write down the value of:
sin140∘\sin 140^\circsin140∘
sin220∘\sin 220^\circsin220∘