Question

solve above question​

Answer 1

Step-by-step explanation:

cos α = 3/5

b/h α= 3/5

p= 4

sin α= 4/5

cos β= 5/13

b/h β= 5/13

p= 12

sinβ= 12/13

sin(α+β)= 4/5 + 12/13

= (52+60)/65

= 112/65