Question

Help please.
What is that little negative one on top of tan.

Answer 1

I know it's a stupid question, but nobody has ever explained it to me.

Answer 2

arctangent function

Answer 3

like this ?
\(\tan^{-1}\)
its called inverse tan function or arctan

Answer 4

How do you input that into a calculator

Answer 5

Depends on the calculator

Answer 6

if \(\tan x=y, \implies x=\tan^{-1}y\)

Answer 7

which calculator are u using ?
you can use google by writing it as arctan

Answer 8

Oh okay thanks everyone.