Question

In right ∆PQR, P and Q are acute angles, and cos P is 3/5. What is sin Q? Answers: 4/5 3/5 2/5 3/4

Answer 1

`Look\ at\ the\ picture.\\\\cos\alpha=(3)/(5);\ cos\alpha=(b)/(c)\\\\sin\beta=(b)/(c)=cos\alpha\\\\therefore\\\\sin\beta=(3)/(5)\\\\Answer:\huge\boxed{(3)/(5)}`