cos30° x cos60° + sin30° x sin60°
Answers
Answered by
6
ur answer is √3/2
= cos30° x cos60° + sin30° x sin60°
= [ (√3/2) x (½) ] + [ (½) x (√3/2) ]
= √3/4 + √3/4
= 2 x √3/4
= √3/2
hope it will help u ❣️
please mark me as brainliest。◕‿◕。
Answered by
0
Answer:
cos30°= √3/2
cos60°=1/2
sin30°= 1/2
sin60°=√3/2
Step-by-step explanation:
cos30°×cos60°+sin30°×sin60°
=√3/2×1/2+1/2×√3/2
=√3/4+√3/4
=2√3/4
=√3/2
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