Question

if tan a =3/4,find the
of cos A​

Answer 1

Answer:

tan A = 3/4 h/p

b=root under 3²+4²

9+16

root under 25

b=5

cos A= b/h= 5/3

Step-by-step explanation:

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Answer 2

Answer:

cos A = 4/3(sin A)

Step-by-step explanation:

Tan A = 3/4

sin A/cos A = 3/4  (∵tan∅ = sin∅/cos∅)

4sin A = 3cos A  (∵cross multiplication)

4sin A/3 = cos A

⇒cos A = 4/3(sin A)