0. Functions

Evaluate the expression.

$\cos^{-1}\left(-1\right)$

Evaluate the expression.

$\cos^{-1}\left(0\right)$

Evaluate the expression.

$\cos^{-1}\left(-\frac{\sqrt2}{2}\right)$

Evaluate the expression.

$\sin^{-1}1$

Evaluating inverse trigonometric functions Without using a calculator, evaluate the following expressions.

$\csc^{-1}\left(-1\right)$

Evaluating inverse trigonometric functions Without using a calculator, evaluate the following expressions.

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

Evaluating inverse trigonometric functions Without using a calculator, evaluate the following expressions.

$\tan^{-1}\left(\tan\left(\frac{3\pi}{4}\right)\right)$

Evaluating inverse trigonometric functions Without using a calculator, evaluate the following expressions.

$\tan\left(\tan^{-1}1\right)$