Derivatives of Exponential Functions
This page focuses on solving dérivée fonction exponentielle exercices corrigés, specifically dealing with composite functions and products involving exponentials. The lesson demonstrates how to apply derivative rules to various exponential expressions.
The first example tackles a composite function:
Example: gx = 6.7e^−0.1x
To find g'x, we apply the chain rule:
g'x = 6.7 × e(−0.1x)' = 6.7 × e(−0.1x × −0.1x')
= 6.7 × −0.1 × e(−0.1x)
= -0.67 × e(−0.1x)
This solution showcases the dérivée exponentielle e^x rule combined with the chain rule for composite functions.
The second example demonstrates the product rule with exponential functions:
Example: fx = e^4x−3 × e^2x−1
Before differentiating, we can simplify the expression:
fx = e^4x−3 × e^2x−1 = e^(4x−3+2x−1) = e^6x−4
Highlight: When multiplying exponential functions with the same base, we can add the exponents.
The lesson then prompts for the calculation of f'x, which would involve applying the dérivée exponentielle u rule to the simplified expression.
Vocabulary:
- Dérivable: A function is considered "dérivable" differentiable if it has a derivative at every point in its domain.
- Composée de fonctions: Composite functions, where one function is applied to the result of another.
This lesson reinforces the importance of recognizing patterns in exponential functions and applying the appropriate derivative rules, such as the dérivée de e^2x or dérivée de exp−x, to solve complex problems efficiently.