How to evaluate for cosine using a calculator in degrees

The video tutorial discusses solving a problem using degrees, explaining the difference between degrees and radians. It guides viewers on setting a calculator to degrees mode and demonstrates calculating the cosine of 25 degrees, resulting in approximately 0.9912. The tutorial concludes with rounding the result and confirming the process.

What is the importance of setting the calculator to degrees when calculating trigonometric functions?

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Explain the difference between degrees and radians in trigonometric calculations.

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What steps should be taken to calculate the cosine of an angle using a calculator?

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Discuss the significance of the value .9912 obtained from the cosine of 25 degrees.

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How do you round the result of a trigonometric function, and why is it necessary?

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