3. Determine whether the following statements are true or false. If true, provide justification. If false, provide a counterexample. (a) If lim f(x) exists and x = 1 is in the domain of f(x), then f(x) is continuous at x = 1. x→1

Advanced Engineering Mathematics
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3. Determine whether the following statements are true or false. If true, provide justification.
If false, provide a counterexample.
(a) If lim f(x) exists and x =
1 is in the domain of f(x), then f(x) is continuous at
1.
x→1
(b) If f(x) is continuous on (0, 1) and f(0) < 0 < f(1), then there exists a number c in (0, 1)
such that f(c) = 0.
(c) Suppose f(x) and g(x) are continuous on [0, 1] and that
f (0) = 0, f(1) = 1,
g(0) = 1
and g(1) = 0.
%3D
Then the graphs of f(x) and g(x) must intersect at some point in the interval (0, 1).
Transcribed Image Text:3. Determine whether the following statements are true or false. If true, provide justification. If false, provide a counterexample. (a) If lim f(x) exists and x = 1 is in the domain of f(x), then f(x) is continuous at 1. x→1 (b) If f(x) is continuous on (0, 1) and f(0) < 0 < f(1), then there exists a number c in (0, 1) such that f(c) = 0. (c) Suppose f(x) and g(x) are continuous on [0, 1] and that f (0) = 0, f(1) = 1, g(0) = 1 and g(1) = 0. %3D Then the graphs of f(x) and g(x) must intersect at some point in the interval (0, 1).
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