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Question
Prove that:
sin 60° cos 30° + cos 60° . sin 30° = 1
Sum
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Solution
LHS =sin 60° cos 30° + cos 60°. sin 30°
= `(sqrt3)/(2) (sqrt3)/(2) + (1)/(2) (1)/(2) = (3)/(4) + (1)/(4) = 1 = RHS`
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