Question

if sin A-B = sin A cos B - cos A sin B. Then find the value of sin 15°​

Answer 1

Answer:Hi there

Put A=45 and B=30

then,sin15=sin(A-B)=

sinAcosB-cosAsinB=sin45cos30-cos45sin30 (1)

Now,sin45=cos45=1/√2

and,sin30=1/2,cos30=√3/2

putting these values in equation (1)

we get

1/√2×√3/2-1/√2×1/2=√3/2√2-1/2√2=(√3-1)/2√2

Step-by-step explanation:Hope this helps u plz mark me as the brainliest