(c) Suppose that ƒ hits every value between y = 0 and y = 1 on the interval [0, 1]. Must ƒ be continuous on that interval?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter4: Calculating The Derivative
Section4.2: Derivatives Of Products And Quotients
Problem 35E
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Solve question C

Exercise 3 - Continuity:
(a) Can we use the IVT to conclude that f(x) = x³ + 2x +1 passes through y = 0 on the interval (-2, 2)?
(b) Can we use the IVT to conclude that f (x) = tan(x) equals 0 for some c in (0, 7)?
(c) Suppose that f hits every value between y = 0 and y = 1 on the interval [0, 1]. Must f be continuous
on that interval?
(d) Show that there is some x with 0 < x < 2 such that x² + cos(ax) = 4.
(e) Use IVT to show that there is root of the equation 2 sin(x) = 3 – 2x in the given interval (0, 1).
Transcribed Image Text:Exercise 3 - Continuity: (a) Can we use the IVT to conclude that f(x) = x³ + 2x +1 passes through y = 0 on the interval (-2, 2)? (b) Can we use the IVT to conclude that f (x) = tan(x) equals 0 for some c in (0, 7)? (c) Suppose that f hits every value between y = 0 and y = 1 on the interval [0, 1]. Must f be continuous on that interval? (d) Show that there is some x with 0 < x < 2 such that x² + cos(ax) = 4. (e) Use IVT to show that there is root of the equation 2 sin(x) = 3 – 2x in the given interval (0, 1).
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