Prove f(x) has a zero (i.e., a point where f(p)=0) on each interval. You can as- sert that the functions are continuous on the relevant intervals (i.e., a rigorous proof that f(x) is continuous on the given interval is not needed). f(x) = x² + 3x – 2; on [0, 2] %3D

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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COURSE: Mathematical Analysis/Real Analysis (CC1A)

TOPIC: Continuity + Connectedness 

**Topic: Understanding Zeros of Functions**

In this exercise, we aim to prove that the function \( f(x) \) has a zero on each interval \([a, b]\). A zero of a function is a point \( p \) where \( f(p) = 0 \). For this problem, you can assume that the functions are continuous on the provided intervals, so a rigorous proof of continuity is not necessary.

**Given Function:**
\[ f(x) = x^2 + 3x - 2 \]

**Interval:**
\[ [0, 2] \]

*Objective:*
Your goal is to demonstrate that there is at least one value \(c\) within the interval \([0, 2]\) such that \( f(c) = 0 \).

*Approach:*
Typically, this can be achieved by using the Intermediate Value Theorem (IVT), which applies to continuous functions on closed intervals. If \( f(x) \) changes signs over the interval, it indicates the presence of a zero. 

Explore and calculate \( f(x) \) for values within and including the bounds of the interval to determine this zero point.
Transcribed Image Text:**Topic: Understanding Zeros of Functions** In this exercise, we aim to prove that the function \( f(x) \) has a zero on each interval \([a, b]\). A zero of a function is a point \( p \) where \( f(p) = 0 \). For this problem, you can assume that the functions are continuous on the provided intervals, so a rigorous proof of continuity is not necessary. **Given Function:** \[ f(x) = x^2 + 3x - 2 \] **Interval:** \[ [0, 2] \] *Objective:* Your goal is to demonstrate that there is at least one value \(c\) within the interval \([0, 2]\) such that \( f(c) = 0 \). *Approach:* Typically, this can be achieved by using the Intermediate Value Theorem (IVT), which applies to continuous functions on closed intervals. If \( f(x) \) changes signs over the interval, it indicates the presence of a zero. Explore and calculate \( f(x) \) for values within and including the bounds of the interval to determine this zero point.
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