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Sin70cos10-cos70sin10
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Sin70cos10-cos70sin10

User Sajib Mahmood
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1 Answer

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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
User Herohtar
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