Question

if A=60 &B=30 ,verify that sin A cos B +cos A sin B=sin(A+B)​

Answer 1

Step-by-step explanation:

sin 60 cos 30+ cos 60 sin 30

= √3/2×√3/2+1/2+1/2

=3/4+1/4

=1

=sin 90=sin(60+30)

= sin (A+B)

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Answer 2

so, we have A= 60 and B= 30

we will substitute this value in the equation both the side and then prove it.

L. H. S

=sinA cosB + cosA sin B

= sin60 cos30 + cos60 sin30

The other steps are in attachment

May report if found wrong.

Thank you