PRECALCULUS UNIT 4: TRIGONOMETRY PRACTICE PROBLEMS

85. csc =2.125 True False 86. The graphs of cosine and secant are shown. Identify the false statement. a. sec2(5𝜋 3)=4 b. sec2𝜋=cos2𝜋 c. The period of sec is 𝜋. d. If sec =3, then cos =1 3 87. The graphs of sine and cosecant are shown. Identify the false statement. a. If csc =4, then sin =1 4. b. sin(5𝜋 4)csc(5𝜋 4)=−1 ................
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