find the values of- cos 60° × cos 30° + sin 60° × sin 30°
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Step-by-step explanation:
cos60*cos30=1/2*√3/2=√3/4
sin 60° × sin 30=√3/2*1/2=√3/4
cos 60° × cos 30° + sin 60° × sin 30°= √3/4+√3/4
=2*√3/4=√3/2
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