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Sin100cos40-cos100sin40​

1 Answer

3 votes

Answer:

Sin(60°)=
(√(3) )/(2)

Step-by-step explanation:

Assuming the given angles are in degrees

We know that Sin(A-B)=SinACosB-CosASinB

Here A=100° and B=40°


Sin(100)Cos(40)-Cos(100)Sin(40)=Sin(100-40)=Sin(60)=(√(3) )/(2)

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