2. Let f be continuous and differentiable everywhere. Suppose that f has zeros at 1 and 3. Show that there are two distinct real numbers r1 and r2 such that f'(r) =-f'(x2).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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need some simple solution in number 2 using the mean value theorem.... ASAP

r2(9 – r2)
(3 – r2)2
6.x(r2 +9)
(3 – 2)3*
1. Given f(r)
with f'(r) =
and f"(x) =
3 - x2
2. Let f be continuous and differentiable everywhere. Suppose that f has zeros at 1 and 3.
Show that there are two distinct real numbers r and r2 such that f'(r1) = -f'(x2).
Transcribed Image Text:r2(9 – r2) (3 – r2)2 6.x(r2 +9) (3 – 2)3* 1. Given f(r) with f'(r) = and f"(x) = 3 - x2 2. Let f be continuous and differentiable everywhere. Suppose that f has zeros at 1 and 3. Show that there are two distinct real numbers r and r2 such that f'(r1) = -f'(x2).
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