Question

use the aleks calculator to evaluate each expre round your answers to the nearest hundredth. tan 51° = cos 22° = sin 78° =

Explanation:

Step1: Calculate $\tan51^{\circ}$

Using a calculator, $\tan51^{\circ}\approx1.2349$
Rounding to the nearest hundredth: $1.23$

Step2: Calculate $\cos22^{\circ}$

Using a calculator, $\cos22^{\circ}\approx0.9272$
Rounding to the nearest hundredth: $0.93$

Step3: Calculate $\sin78^{\circ}$

Using a calculator, $\sin78^{\circ}\approx0.9781$
Rounding to the nearest hundredth: $0.98$

Answer:

$\tan51^{\circ}=1.23$, $\cos22^{\circ}=0.93$, $\sin78^{\circ}=0.98$