Question

Let A = 30° and B = 60°. Verify each of the following sin (A-B) = sin A cos B - cos A sin B.​

Answer 1

Step-by-step explanation:

LHS.

Sin (A-B)

Sin(30-60)

Sin (-30)

-1/2

RHS

Sin30 * Cos60 - Cos30 * Sin60

1/2 * 1/2 - √3/2 * √3/2

1/4-3/4

-1/2

Hence proved

Answer 2

by A=30 and B =60. answer will be -1/2. i hope it helps u .....