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2. The cosine of an obtuse angle is -0.78. Calculate the sine of this angle to 4 decimal places. 3. The tangent of an obtuse angle is Calculate the cosine of this angle to 4 decimal places.

2. The cosine of an obtuse angle is -0.78. Calculate the sine of this angle to 4 decimal places. 3. The tangent of an obtuse angle is Calculate the cosine of this angle to 4 decimal places.

Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter5: Trigonometric Functions: Right Triangle Approach
Section5.1: Angle Measure
Problem 1E: a The radian measure of an angle is the length of the __________ that subtends the angle in a...
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2. The cosine of an obtuse angle is -0.78. Calculate the sine of this angle to 4 decimal places. 5 $19. 9° Calculate the cosine of this angle to 4 decimal places. 3. The tangent of an obtuse angle is diooted length?
Transcribed Image Text:2. The cosine of an obtuse angle is -0.78. Calculate the sine of this angle to 4 decimal places. 5 $19. 9° Calculate the cosine of this angle to 4 decimal places. 3. The tangent of an obtuse angle is diooted length?
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