AP style question 6. Suppose f is a twice- differentiable function such that f(2) = 5 and f (5) = 2. Further suppose that g(x) = f(f(x)). a) Explain why there must be a value c for 2

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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AP style question
6. Suppose f is a twice-
differentiable function
such that f(2) = 5 and
f (5) = 2. Further suppose
that g(x) = f(f(x)).
a) Explain why there
must be a value c for
2 <c < 5 such that
f'(c) = -1.
%3D
b) Find g'(x), g'(2), and
g'(5).
c) Using your results in
(b), explain why there
must be a value d for
2 < d < 5 such that
g"(5) = 0.
Transcribed Image Text:AP style question 6. Suppose f is a twice- differentiable function such that f(2) = 5 and f (5) = 2. Further suppose that g(x) = f(f(x)). a) Explain why there must be a value c for 2 <c < 5 such that f'(c) = -1. %3D b) Find g'(x), g'(2), and g'(5). c) Using your results in (b), explain why there must be a value d for 2 < d < 5 such that g"(5) = 0.
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