Question

Given Sin A is equals to 3 by 5 find Tan A and Cos A

Answer 1

sinA=perpendicular/ hypotnuse=3/5

by right angle property,

h^2=p^2+b^2

5^2=3^2+b^2

b^2=25-9

b^2=16

b=4

then cosA=base/hypotnuse = 4/5

tanA= perpendicular /base = 3/4