How do you use a calculator to evaluate #cos((8pi)/7)#?
2 Answers
May 17, 2018
See process
Explanation:
In Casio calculators
Be sure to set calculator in RAD mode (important)
Press "cos" key and then introduce
Press "=" and you got it
In others trade marks read the user guide (trigonometric functions) to follow equivalent steps to prior process
May 18, 2018
Set calculator on "Deg."
On the calculator, transform ((8pi)/7)) to degrees -->
Press "cos", get:
