Question

sin a = 4/5 then find the value of tan 3A​

Answer 1

Answer:

We know that cos 3A = 4 cos3 A – 3 cos A Read more on Sarthaks.com - https://www.sarthaks.com/980554/if-sin-a-3-5-find-the-values-of-cos-3a-and-tan-3a?show=980565#a980565

Answer 2

hello.friend.

question

sin a = 4/5 then find the value of tan 3A

given.

a=4/5

tan.3.a.=?

solusion

Given sin A = 3535

cos A = AdjacentsideHypotenuseAdjacentsideHypotenuse = 4545

And tan A = OppositesideAdjacentside=34OppositesideAdjacentside=34

We know that cos 3A = 4 cos3 A – 3 cos A

see. in. attachment.

answer.

-117/44.

hope. it's. helps. you. friend. ✔️