Question

please solutions help us​

Answer 1

Step-by-step explanation:

cosA = 3/5=adj/hyp

consider triangle ABC where B = 90°

apply Pythagoras theorem

AC^=AB^+BC^

(5)^=(3)^ + BC^

25=9+BC^

25-9=BC^

16= BC^

BC=√16

BC=4

sin = opp/ hyp= 4/5

tan=opp/adj = 4/3

hope it helps you