Question

PLEASE HELP !! find the value of sin(a+b) when sin a=3/7 and cos b=3/4

Answer 1

start by drawing 2 right triangles and finding the missing sides



then you'll have the necessary values for cos(a) and sin(b)

and you need to know

sin(a + b) = sin(a)cos(b) + cos(a)sin(b)

hope it helps