Here is a sketch of the curve y=cosx∘y = \cos x^\circy=cosx∘ for 0≤x≤3600 \leq x \leq 3600≤x≤360
Given that cos60∘=0.5\cos 60^\circ = 0.5cos60∘=0.5 write down the value of:
i.[1]
cos300∘\cos 300^\circcos300∘
ii.[1]
cos120∘\cos 120^\circcos120∘
Here is a sketch of the curve y=cosx∘y = \cos x^\circy=cosx∘ for 0≤x≤3600 \leq x \leq 3600≤x≤360
Given that cos60∘=0.5\cos 60^\circ = 0.5cos60∘=0.5 write down the value of:
cos300∘\cos 300^\circcos300∘
cos120∘\cos 120^\circcos120∘