Question

if cos A=4/5,find sin A and tan A​

Answer 1

Answer:

cos A = 4/5

Using the identity

sin^2 A + cos^2 A = 1

sin A = √1-(4/5)^2 = √9/25 = 3/5

tan A = sin A / cos A = 3/4

Answer 2

Step-by-step explanation:                                                                                                  sin A =3/5  AND  tan A =3/4