1.6 Cosine and Sine Functions

1.6 Cosine and Sine Functions - ± ² ³´µ ...

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Agenda: 0. How was yesterday? 1. Classwork 2. Lesson: 1.6 Cosine and Sine Functions ___________________________________ Lesson: 1.6 Cosine and Sine Functions Goal: Evaluate sine and cosine functions of an angle given a point on the terminal side DOD If is an angle in standard position and if is any point (other than the origin) on the terminal side of , then: ___________________________________ A reminder about rationalizing the denominator… 1.6 Cosine and Sine Functions Wednesday, August 31, 2011 7:26 AM Ch_1 Page 1
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___________________________________ Examples Find the exact values of sine and cosine of an angle in standard position given point
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Unformatted text preview: ± ² ³´µ ¶ ±²·¸´¹º¶ For the next problems we will start out drawing the triangle from the given information, then answer the question. Angle is in standard position with its terminal side in the third quadrant. Find the exact value of »¼½ if ½¾¿ À · Á  Angle is in standard position with its terminal side in the fourth quadrant. Find the exact value of ½¾¿ if »¼½ À  Ãà On your whiteboards… Sketch the reference angle, and find the exact values of sine and cosine of an angle in standard position if the point A with the given coordinates is on the terminal side of the angle. ±²¸´Ä¶ Ch_1 Page 2 Ch_1 Page 3...
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