sin 60° cos 30° - cos 60° sin 30°
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Step-by-step explanation:
sin 60°=√3/2 , cos 30°=√3/2
sin30°=1/2,cos 60°=1/2
so, (√3/2)(√3/2)-(1/2)(1/2)
=3/4-1/4
= 3-1/4
= 2/4= 1/2
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