Question

if 5 sin A = 3. find the value of cosA and tan A​

Answer 1

Answer:

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Answer 2

Answer:

5 sin A = 3

=> sinA = 3/5 = perpendicular/hypotenuse

by Pythagoras theorem,

=> (h)^2 = (p)^2 + (b)^2

=> (5)^2 = (3)^2 + (b)^2

=> 25 - 9 = (b)^2

=> √16 = b

=> b = 4

now,

cos A = base/ hypotenuse

=> cos A = 4/5

and

tan A = perpendicular/base

=> tan A= 3/4