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Chapter 6: Q. 70 (page 396)
Use the even–odd properties to find the exact value of each expression. Do not use a calculator.
The exact value of trigonometric expression is
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In Problems , convert each angle in degrees to radians. Express your answer as a multiple of .
Difference in Time of Sunrise Naples, Florida, is approximately 90 miles due west of Ft. Lauderdale. How much sooner would a person in Ft. Lauderdale first see the rising Sun than a person in Naples? See the hint. [Hint: Consult the figure. When a person at Q sees the first rays of the Sun, a person at P is still in the dark. The person at P sees the first rays after Earth has rotated so that P is at the location Q. Now use the fact that at the latitude of Ft. Lauderdale in 24 hours an arc of length miles is subtended.]
In Problems 13–20, is the point on the unit circle that corresponds to a real number . Find the exact values of the six trigonometric functions of .
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In Problems , convert each angle in degrees to radians. Express your answer as a multiple of .
The range of the sine function is _____.
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