Question

find the value of sin(a+b)×sin(a-b)​

Answer 1

Answer:

$12(89)y58yx9212 \sin(5) 6154 {124 {5}^{?6} }^{?2}$

hope it helps you

Answer 2

(sinAcosB+cosAsinB)(sinAcosB-cosAsinB)

(sinAcosB)²-(cosAsinB)²

(sin²2A-sin²2B)/2

hope this is helpful...