Question

Evaluate tangent ^-1 1

Answer 1

when I calculated it said 9.72 idk why but yeah not the right answer don't listen to my answer

Explanation:

Answer 2

`{ \tan }^( - 1) (1) = 45 \degree`

Or

`{ \tan }^( - 1) (1) = (\pi)/(4)`

EXPLANATION

We want to evaluate:

`{ \tan }^( - 1) (1)`

We can use scientific calculator to evaluate this directly to obtain:

`{ \tan }^( - 1) (1) =45\degree`

Or

`{ \tan }^( - 1) (1) = (\pi)/(4)`

You could have also let:

`x = { \tan }^( - 1) (1)`

Then,

`\tan(x) = 1`

The angle whose tangents is 1 is

`x =45\degree`

Or

`x = (\pi)/(4)`