Math, asked by si3llySaumanjith, 1 year ago

Sin(40 + A) Cos(10+A) - Cos(40+A) Sin(10+A) = 1/2

Answers

Answered by akhilakhi
2
sin(X+Y) = sinX*cosY - cosX*sinY
if X = 40+A
   Y = 10+A
therefore,
Sin(40 + A) Cos(10+A) - Cos(40+A) Sin(10+A) = Sin(40 + A + 10 + A)
=Sin(60 +A)
if A=0
=Sin(60 + 0)=Sin(60)=1/2
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