Given two triangles determine the difference of the two angles using cosine

The video tutorial explains how to handle trigonometric functions when values are not on the unit circle. It emphasizes the importance of creating triangles in Quadrant 2 and using the Pythagorean theorem to find missing sides. The tutorial also covers calculating the cosine of U - V using specific formulas, ensuring students understand the process of applying trigonometric identities and theorems.

What is the sine of angle U given in the text?

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Explain how to create a triangle when the points are not on the unit circle.

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What quadrant must the triangle be in according to the instructions?

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Describe the relationship between cosine and the sides of a triangle.

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What is the Pythagorean theorem and how is it applied in this context?

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How do you calculate the cosine of U - V using the given values?

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What is the final answer for the cosine of U - V as calculated in the text?

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