Question

if
tan A=3/4 then cos A =_____*​

Answer 1

tan A = 3/4 = opposite

adjacent

using Pythagoras theorem

(hypotenuse)² = 3² + 4²

= 9 + 16

= 25

hypotenuse = √25

hypotenuse = 5

cos A = adjacent

. hypotenuse

= 4/5