Question

If tan A=3/4, find the value
cos A​

Answer 1

Answer:

4/5

Step-by-step explanation:

Using pythagoras theorom ;

$h^{2} =p^{2} +b^{2}\\h^{2} =4^{2} +3^{2} \\h^{2} =16+9\\h^{2} =25\\\\h=5\\\\Now;\\Tan\alpha =b/h\\\\tan\alpha =4/5$