Question

Evaluate tangent ^-1 1

Answer 1

Answer:

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

Step-by-step explanation:

Answer 2

ANSWER

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

Or

${ \tan }^{ - 1} (1) = \frac{\pi}{4}$

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

${ \tan }^{ - 1} (1) = \frac{\pi}{4}$

You could have also let:

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

Then,

$\tan(x) = 1$

The angle whose tangents is 1 is

$x =45\degree$

Or

$x = \frac{\pi}{4}$