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Evaluate for sine cosine and tangent using reference angles
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Mathematics, Business
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11th Grade - University
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Hard
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The video tutorial explains how to evaluate the sine, cosine, and tangent of -840 degrees using coterminal and reference angles. It covers the concept of negative angles, finding reference angles both graphically and algebraically, and calculating trigonometric values. The tutorial emphasizes the importance of understanding the unit circle and the properties of angles in different quadrants.
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