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Chapter 4: Problem 67

Use a calculator to find the value of the trigonometric function to four decimal places. $$\cos \frac{\pi}{10}$$

Short Answer

Expert verified
The value of \(\cos(\pi/10)\) is approximately 0.9511.

Step by step solution

01

Input the function into a calculator

This is a simple task if familiar with a scientific calculator. Input the expression into your calculator as follows: cos(\(\pi/10\)). Ensure that your calculator is in radian mode since \(\pi\) is used, which is a radian measure.
02

Calculate the result

After correctly inputting the expression into the calculator, hit the 'Equals' button or whatever process your calculator requires to carry out the computation.
03

Interpret the result

The calculator will provide a decimal number as a result. Write this number down to four decimal places, rounding the last digit if necessary.

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