Question

How do I solve cos(2 Arctan 4/3) ?

Answer 1

let name arctan(4/3)=x
then tanx=4/3 yes

Answer 2

agreement or not hehe

Answer 3

are you shy, you don't get, you don't want to speak at all hahah

Answer 4

get it*

Answer 5

hehe not you old man

Answer 6

Nvm, I figured it out. Thanks for your time!!

Answer 7

haha, go do some hard problems

Answer 8

okay! good :)