Question

use the aleks calculator to evaluate each expression. round your answers to the nearest hundredth. sin 21° = cos 68° = tan 57° =

Explanation:

Step1: Calculate $\sin21^{\circ}$

Using a calculator, $\sin21^{\circ}\approx0.36$

Step2: Calculate $\cos68^{\circ}$

Using a calculator, $\cos68^{\circ}\approx0.37$

Step3: Calculate $\tan57^{\circ}$

Using a calculator, $\tan57^{\circ}\approx1.54$

Answer:

$\sin21^{\circ}\approx0.36$, $\cos68^{\circ}\approx0.37$, $\tan57^{\circ}\approx1.54$