Question

a right triangle ABC, tan(A) = 3/4. Find sin(A) and cos(A).
In a right triangle ABC with angle A equal to 90°, find angle B and C so that sin(B) = cos(B).

Answer 1

Step-by-step explanation:

In right angle triangle ABC

B is a right angle triangle

AB=4 , BC=3

AC=√4^2+3^2

AC=√16+9

AC=√25

AC=5

P=3, B=4 and H= 5

sinA=P/H= 3/5

CosA= B/H=4/5