Problem 67
Question
Use a calculator to find the value of the trigonometric function to four decimal places. $$\cos \frac{\pi}{10}$$
Step-by-Step Solution
Verified Answer
The value of \(\cos(\pi/10)\) is approximately 0.9511.
1Step 1: 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.
2Step 2: 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.
3Step 3: 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.
Other exercises in this chapter
Problem 67
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