use the aleks calculator to evaluate each expression. give your answers in radians. round them to the…

use the aleks calculator to evaluate each expression. give your answers in radians. round them to the nearest hundredth. if applicable, click on \undefined.\ \n\n$$\\cos^{-1}(-0.88)=$$ \n\n$$\\tan^{-1}(0.46)=$$ \n\n$$\\sin^{-1}(-1.21)=$$

use the aleks calculator to evaluate each expression. give your answers in radians. round them to the nearest hundredth. if applicable, click on \undefined.\ \n\n$$\\cos^{-1}(-0.88)=$$ \n\n$$\\tan^{-1}(0.46)=$$ \n\n$$\\sin^{-1}(-1.21)=$$

Answer

Explanation:

Step1: Evaluate $\cos^{-1}(-0.88)$

Using a calculator, $\cos^{-1}(-0.88)\approx2.66$ radians.

Step2: Evaluate $\tan^{-1}(0.46)$

Using a calculator, $\tan^{-1}(0.46)\approx0.43$ radians.

Step3: Evaluate $\sin^{-1}(-1.21)$

The domain of the inverse sine function $y = \sin^{-1}(x)$ is $- 1\leqslant x\leqslant1$. Since $-1.21<-1$, $\sin^{-1}(-1.21)$ is undefined.

Answer:

$\cos^{-1}(-0.88)\approx2.66$; $\tan^{-1}(0.46)\approx0.43$; $\sin^{-1}(-1.21)$ is undefined.