Sin a =3/5 cos b = 8/17 Tentukan (sin a + b)

sin a = 3/5, maka cos a = 4/5
cos b = 8/17, maka sin b = 15/17
sin (a+b) = sin a x cos b + sin b x cos a
sin (a+b) = 3/5 x 8/17 + 15/17 x 4/5
sin (a+b) = 24/85 + 60/85
sin (a+b) = 84/85
inshaallah:), semoga membantu^^