Use cofunction identities and trig identities to find the indicated trig functions

The video tutorial explains how to find the tangent of 60 degrees using known values of sine and cosine. It begins by stating the given values for sine and cosine of 60 degrees, then demonstrates how to use trigonometric identities to relate tangent to these values. The tutorial provides a detailed step-by-step simplification process to calculate the tangent, concluding with the final result of sqrt 3.

What is the value of cosine of 60 degrees?

Explain the process of simplifying the fraction when calculating tangent.