Learn to evaluate for the secant of an angle without using a triangle

The video tutorial explains reciprocal functions, focusing on the cosine and secant of π/3. It covers two methods: using a 30-60-90 triangle and the unit circle. The secant of 60 degrees is calculated as the hypotenuse over the adjacent side, and the unit circle method involves identifying the cosine of 60 degrees as the x-coordinate. Both methods lead to the same result, demonstrating different approaches to understanding trigonometric functions.

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