Q. 76 - Precalculus Enhanced with Graphing Utilities

Question

Use a calculator to find the approximate value of each expression rounded to two decimal places: $\tan 1°$

Step-by-Step Solution

Answer

The approximate value of the expression $\tan 1°$ is $0.02$

Step 1. Given information

The given trigonometric expression is $\tan 1°$.

We are suppose to use the calculator to find the approximate value of the above expression and round it off to two decimal places.  

Step 2. Concept

While using the calculator to find the values of trigonometric expression, set the calculator to the correct MODE depending on whether you are entering the angle using degree or radian.  

Step 3. Finding the approximate value of the given expression

We are given the expression $\tan \left(1°\right)$

As the given angle is in degree, we will set the MODE in the calculator to receive degrees. 

Then, after rounding to two decimal places, $\tan 1°=0.01745\approx 0.02$

Step 4. Final Answer

The approximate value of the expression $\tan 1°$ is $0.02$