Question

.
. Give reason. P/sin a., Q/sin B and R/sin y are equal​

Answer 1

according to traingle law of trigonometry P/Sina = Constant

Answer 2

According to triangle law of trignometry they are equal

a/sin A=b/sin B=c/sin C=d

where a, b, and c are the lengths of the sides of a triangle, and A, B, and C are the opposite angles,while d is the diameter of the triangle's circumcircle.