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attashe74 [19]
2 years ago
13

Sin70cos10-cos70sin10

Mathematics
1 answer:
ololo11 [35]2 years ago
3 0
We know that sin(a-b) = sina.cosb - cosa.sinb

if a=70  &  b=10 the sin(70-10) = sin(60) = √3/2

Sin70cos10-cos70sin10 = sin60 = √3/2
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