`sin(A+B)=sinA cos B +cos A sin B`

Multiply sin(A+B)=sinA cosB+ cos A sinB and sin(A-B)=sinA cosB - cosA sin B

Prove by vector method that sin(A-B)=sin A cos B-cos A sin B and sin(A+B)=sin A cos B+cos A sin B

For all values of angle A and B(i)sin(A-B)=sin A cos B-cos A sin B(ii)sin(A+B)=sin A cos B+cos A sin B

sin(A-B)=sinA cos B-cosA sinB

If sin (A-B)=sin A cos B-cos A sin B and cos (A - B) = cos A cos B + sin A sin B . find the values of sin 15^@ and cos 15^@.

If A=30o and B=60o ,verify that sin(A+B)=sin A cos B+cos A sin B(ii)cos(A+B)=cos A cos B-sin A sin B

Prove that sin (A+B)= sin A cos B + cos A sin B.

Prove that : sin(A- B) = sin A cos B -cos A sin B .

Prove that formula cos(A-B)=cos A*cos B+sin A*sin Bwith the help of the formula sin(A+B)=sin A*cos B+cos A*sin B

Prove that : sin(A + B) = sin A cos B + cos A sin B .