Question

If cos A =4/ 5
then the value of tan A is

(C)4/3
(D)5/3
(A)3/5
(B)3/4
​

Answer 1

Answer:

3/4

Step-by-step explanation:

tanA = 3/4

cos thetha = base/hypotenuse

4 = base

5 = hypotenuse [In a triangle]

tan thetha = perpendicular/hypotenuse

3 = perpendicular

tanA = 3/4

Please mark as brainliest answer if helpful

Answer 2

$\displaystyle\huge\red{\underline{\underline{ANSWER}}}$

Given cosA=4/5

we know that cosA=base/hypotenuse

so b/h=4/5

hence b=4x

h=5x

by Pythagoras theorem

h²=p²+b²

25x²=p²+16x²

p=3x

as tanA=p/b

TanA=3/4

hence,(b) is correct