b. Verify that the given function is a solution of the differential equation. z(t) = e-t + e2t + e-3t – et z" (t) + 2 z"(t) – 57' (t) – 67(t) = 8et

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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### Verification of a Function as a Solution to a Differential Equation

**Problem Statement:**
Verify that the given function is a solution of the differential equation.

**Function:**
\[ z(t) = e^{-t} + e^{2t} + e^{-3t} - e^t \]

**Differential Equation:**
\[ z'''(t) + 2z''(t) - 5z'(t) - 6z(t) = 8e^t \]

**Goal:**
To determine if \( z(t) \) satisfies the differential equation, we need to compute the derivatives of \( z(t) \), substitute them into the differential equation, and verify that the left-hand side equals the right-hand side, \( 8e^t \).
Transcribed Image Text:### Verification of a Function as a Solution to a Differential Equation **Problem Statement:** Verify that the given function is a solution of the differential equation. **Function:** \[ z(t) = e^{-t} + e^{2t} + e^{-3t} - e^t \] **Differential Equation:** \[ z'''(t) + 2z''(t) - 5z'(t) - 6z(t) = 8e^t \] **Goal:** To determine if \( z(t) \) satisfies the differential equation, we need to compute the derivatives of \( z(t) \), substitute them into the differential equation, and verify that the left-hand side equals the right-hand side, \( 8e^t \).
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