Using period as an aide to evaluate for secant when the angle falls on the x axis

The video tutorial explains how to solve a secant problem by recognizing and eliminating redundant periods. The instructor demonstrates that the given angle can be simplified by rewriting it as a sum of periods, which are essentially circles. By canceling out these redundant circles, the problem is reduced to finding the secant of zero degrees, which is calculated to be one. The tutorial emphasizes understanding the concept of periods in trigonometry and how they can simplify complex problems.

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