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Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Instruction for Students**

To determine the arc length of a curve, follow these steps. Remember, you are only required to set up the integral, not compute it.

**Problem Statement**

Write down the integral that gives the arc length of the following curve over the specified interval. Do not evaluate the integral.

Given function:

\[ y = 8x^2 \]
Interval: \[ 1 \leq x \leq 4 \]

**Explanation**

To find the arc length \( L \) of a curve described by the function \( y = f(x) \) over the interval \([a, b]\), use the following formula for arc length:

\[ L = \int_{a}^{b} \sqrt{1 + \left( \frac{dy}{dx} \right)^2} \, dx \]

1. Compute \( \frac{dy}{dx} \) for the given function \( y = 8x^2 \).
2. Substitute \( \frac{dy}{dx} \) into the formula and set up the integral over the interval from 1 to 4.
3. Simplify the integrand but do not perform the integration.

This setup will provide the integral needed to compute the arc length of the curve, which you can solve further if needed.
Transcribed Image Text:**Instruction for Students** To determine the arc length of a curve, follow these steps. Remember, you are only required to set up the integral, not compute it. **Problem Statement** Write down the integral that gives the arc length of the following curve over the specified interval. Do not evaluate the integral. Given function: \[ y = 8x^2 \] Interval: \[ 1 \leq x \leq 4 \] **Explanation** To find the arc length \( L \) of a curve described by the function \( y = f(x) \) over the interval \([a, b]\), use the following formula for arc length: \[ L = \int_{a}^{b} \sqrt{1 + \left( \frac{dy}{dx} \right)^2} \, dx \] 1. Compute \( \frac{dy}{dx} \) for the given function \( y = 8x^2 \). 2. Substitute \( \frac{dy}{dx} \) into the formula and set up the integral over the interval from 1 to 4. 3. Simplify the integrand but do not perform the integration. This setup will provide the integral needed to compute the arc length of the curve, which you can solve further if needed.
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