1. Find the value of sin(40° +0)cos(10° +0)
-cos(40° + 0) sin(10° +0)
a) 1/2
b) 1/4
c) 1
d) o
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Sin40 . Cos10 - Cos40 . Sin10
Using Sin(A-B)=SinACosB - CosASinA
A=40 , B=10
Sin(40-10) = Sin30 = (a)1/2
Using Sin(A-B)=SinACosB - CosASinA
A=40 , B=10
Sin(40-10) = Sin30 = (a)1/2
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