Question

IfA=60°andB=45°and sin(a-b)=sinACosB-cosASinB,then find the value of sin 15

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

(√3-1)/2√2

Step-by-step explanation:

sin(a-b)=sinAcosB-cosAsinB

put a equal to 60 degree, B equal to 45 degree.

sin 15°=sin(60°-45°)

=sin60°cos45°-cos60°sin44

=(√3/2)(1/√2)-(1/2)(1/√2)

=(√3-1)/2√2

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