25. r(Θ) = Θ + sin^2 (Θ/3) - 8, (-inf ,inf) 26. r(Θ) = 2Θ - cos^2 Θ + 22, (-inf, inf)

Chapter 4.2 The Mean Value Theorem Ex25-26
數學系卡安很閒 所以決定拯救沒辦法用quizlet和chegg的莘莘學子
Show that the functions in Exercises 21–28 have exactly one zero in
the given interval.
25. r(Θ) = Θ + sin^2 (Θ/3) - 8, (-inf ,inf)
26. r(Θ) = 2Θ - cos^2 Θ + 22, (-inf, inf)