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

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 76E
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Exercise 3 - Continuity:
(a) Can we use the IVT to conclude that f (x) = x³ + 2x + 1 passes through y
(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).
O on the interval (-2, 2)?
Transcribed Image Text:Exercise 3 - Continuity: (a) Can we use the IVT to conclude that f (x) = x³ + 2x + 1 passes through y (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). O on the interval (-2, 2)?
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