Question

sin(A+B)-sin(A-B)

Pls help me​

Answer 1

Refer to the attachment for answer

Answer 2

Answer:

2 cos A sinB

Step-by-step explanation:

sin (A+B)=SINA COS B +COSA SINB

SIN (A-B)=SINA COSB -COS A SIN B

SIN (A+B)-SIN (A-B)= SINA COS B +COSA SINB-( SINA COSB -COS A SIN B)

= SINA COS B +COSA SINB -SINA COSB +COSA SINB

SINA COS B -SINA COSB will cancel

then

=COSA SINB+ COSA SINB

=2COSA SIN B