Evaluating Trigonometric Functions In Exercises 13-26, find the exact values of the sine, cosine, and tangent of the angle. 19. 285° ZUL
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A: Find the exact value of the trigonometric function. (If an answer is undefined, enter UNDEFINED.)…
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- True or False? In Exercises 71–74, determine whether the statement is true or false. Justify your answer. The difference between the measures of two coterminal angles is always a multiple of 360 when expressed in degrees and is always a multiple of 2#35;960; radians when expressed in radians.Converting from Degrees to Radians In Exercises 39-42, convert the degree measure to radian measure. Round to three decimal places. 48.27Evaluating Trigonometric FunctionsIn Exercises 9–12, find the exact values of thesix trigonometric functions of each angle θ.
- Evaluating Trigonometric Functions InExercises 33 and 34, find the exact values of the sixtrigonometric functions of the angle θ.33.54θ34.84θUsing a Calculator In Exercises 35–38, use acalculator to evaluate the trigonometric function. Roundyour answer to four decimal places. (Be sure thecalculator is in the correct mode.)Evaluating an Inverse TrigonometricFunction In Exercises 77–80, find the exact value ofthe expression.77. arcsin(−1)78. cos−1 179. arccot √380. arcsec(−√2)Using a Calculator In Exercises 59–62, use acalculator to evaluate the trigonometric function. Roundyour answer to four decimal places. (Be sure thecalculator is in the correct mode.)59. sin 106°60. tan 37°61. tan(−17π15)62. cos(−25π7)
- Using the Law of Sines In Exercises5–22, use the Law of Sines to solve the triangle.Round your answers to two decimal places.Evaluating an Inverse TrigonometricFunction In Exercises 5–18, find the exactvalue of the expression, if possible.Verifying a Trigonometric Identity InExercises 9–18, verify the identity.
- Using a Calculator In Exercises 75–90,use a calculator to evaluate the trigonometricfunction. Round your answer to four decimalplaces. (Be sure the calculator is in thecorrect mode.)75. sin 10° 76. tan 304°77. cos(−110°) 78. sin(−330°)79. cot 178° 80. sec 72°81. csc 405° 82. cot(−560°)83. tanπ9 84. cos2π785. sec11π8 86. csc15π487. sin(−0.65) 88. cos 1.3589. csc(−10) 90. sec(−4.6)Evaluating a Trigonometric ExpressionIn Exercises 35–40, find the exact value of theexpression.Determining a Quadrant In Exercises 19–22,determine the quadrant in which θ lies.19. sin θ > 0, cos θ > 0 20. sin θ < 0, cos θ < 021. csc θ > 0, tan θ < 0 22. sec θ > 0, cot θ < 0