a) f(x)=5x²e²x

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question
100%
Find the derivative of this function but Do Not Simplify
a) \( f(x) = 5x^3 e^{2x} \)

This function, \( f(x) \), is a product of two components: a polynomial, \( 5x^3 \), and an exponential function, \( e^{2x} \).

- **Polynomial Component:** The term \( 5x^3 \) is a cubic polynomial. The coefficient 5 indicates the steepness of the curve, and \( x^3 \) suggests that the function will have one inflection point and exhibit growth at an increasing rate as \( x \) becomes larger.

- **Exponential Component:** The term \( e^{2x} \) represents an exponential growth function, where \( e \) is the base of the natural logarithm, approximately equal to 2.71828. The exponent \( 2x \) shows that the exponential growth rate is twice the rate of a standard exponential function, \( e^x \).

Together, this function \( f(x) \) describes a curve that grows rapidly, influenced by both the polynomial and exponential components. The exponential factor will generally dominate as \( x \) increases, causing rapid growth in the value of \( f(x) \).
Transcribed Image Text:a) \( f(x) = 5x^3 e^{2x} \) This function, \( f(x) \), is a product of two components: a polynomial, \( 5x^3 \), and an exponential function, \( e^{2x} \). - **Polynomial Component:** The term \( 5x^3 \) is a cubic polynomial. The coefficient 5 indicates the steepness of the curve, and \( x^3 \) suggests that the function will have one inflection point and exhibit growth at an increasing rate as \( x \) becomes larger. - **Exponential Component:** The term \( e^{2x} \) represents an exponential growth function, where \( e \) is the base of the natural logarithm, approximately equal to 2.71828. The exponent \( 2x \) shows that the exponential growth rate is twice the rate of a standard exponential function, \( e^x \). Together, this function \( f(x) \) describes a curve that grows rapidly, influenced by both the polynomial and exponential components. The exponential factor will generally dominate as \( x \) increases, causing rapid growth in the value of \( f(x) \).
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