" 11) "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 : 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

Given that sin (A+ B) = sin A cos B + cos A sin B , find the value of sin 75° .

Using the fact that sin (A +B) = sin A.cos B+ cos A sin B and the differentiation, obtain the sum formula for cosines.

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

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

Using the formula of sin(A-B)=sin A cos B-cos A sin B find the value of sin15^(@)

Given that sin(A+B)=sin A cos B+cos A sin B, find the value of sin75o.