Finding Trigonometric Coordinates for the 45-Degree Angle on the Unit Circle

This lesson teaches how to find the trigonometric coordinates for a 45-degree angle on the unit circle using properties of isosceles right triangles. It covers the application of the Pythagorean theorem to determine the length of the triangle's legs and explains the process of rationalizing the denominator to simplify expressions. The lesson concludes with determining the coordinates as the square root of 2 over 2 for both sine and cosine of the 45-degree angle.

Explain the process of rationalizing the denominator when finding x.

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What are the trigonometric coordinates for the 45-degree angle of the unit circle?

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