what is the answer of the given sum sin48×cos 78
Answers
Answered by
14
sin48×cos78
=cos(90-42)×sin(90-12)
=cos30×sin60
=√3/2×√3/2
=3/4 answer
hope its help u
=cos(90-42)×sin(90-12)
=cos30×sin60
=√3/2×√3/2
=3/4 answer
hope its help u
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Answered by
1
cos(90-42)×sin(90-22)
cos30×sin60
√3/2×√3/2
=3/4 answer
cos30×sin60
√3/2×√3/2
=3/4 answer
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