Evaluating your trig functions and reciprocal functions with a calculator

The video tutorial by Miss Kern explains the differences between radians and degrees when using calculators. It provides step-by-step instructions on calculating the cosine of 1.8 degrees and the secant of 1.8 radians. The tutorial emphasizes the importance of setting the calculator to the correct mode and understanding the reciprocal relationship between cosine and secant.

Why is it important to ensure your calculator is in the correct mode (degrees or radians) before performing calculations?

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What is the result of calculating 1 divided by cosine of 1.8 radians?

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