Sin 60° Cos 30° + sin 30° COS 600
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Answered by
1
Answer:
sin 60 cos 30 + cos 60 sin 30
(cos 30 = sin 90-30=sin 60
sin 30 = cos 90-30 = cos 60)
sin 60 sin 60 +cos 60 cos 60
sin^2 60 + cos^2 60 = 1
sin ^2 tita + cos ^2 tita = 1
Step-by-step explanation:
Answered by
4
Answer:
Sin 60° Cos 30° + Sin 30° Cos 60°
= √3/2 × √3/2 + 1/2 × 1/2
= 3/4 + 1/4
= 3+1/4
= 4/4
= 1
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