Derivative of 4^x

Learn what is the derivative of 4^x with formula. Also understand how to verify the derivative of an algebraic function 4^x by using first principle.

Alan Walker-

Published on 2023-06-21

Introduction to the derivative of 4^x

Derivatives have a wide range of applications in almost every field of engineering and science. The 4^x derivative is equal to the product of 4^x and log 4 which can be calculated by following the differentiation rules. Or, we can directly find the derivative formula of 4^x by applying the first principle of differentiation. In this article, you will learn what the 4^x derivative formula is and how to calculate the derivatives of 4^x by using different approaches.

What is the derivative of 4^x?

The derivative of 4^x is equal to 4^x log 4. It measures the rate of change of the exponential function 4^x. It is denoted by d/dx(4^x) which is a fundamental concept in calculus.

Knowing the formula for derivatives and understanding how to use it can be used in solving problems related to velocity, acceleration, and optimization. 

Differentiation of 4^x formula

The formula for derivative of f(x)=4^x is equal to the 4^x log 4, that is;

$f'(x) = \frac{d}{dx} (4^x) = 4^x log 4$

It is calculated by using the logarithmic differentiation.

How do you differentiate 4^x?

There are multiple ways to prove the 4^x derivative. These are;

  1. First Principle
  2. Logarithmic differentiation
  3. Quotient Rule

Each method provides a different way to compute the differentiation of 4 to the power x. By using these methods, we can mathematically prove the formula for finding the x^4 differentiation.

Derivative of 4 power x by first principle

According to the first principle of derivative, the 4^x derivative is equal to 4^x log 4. The derivative of a function by first principle refers to finding a general expression for the slope of a curve by using algebra. It is also known as the delta method. The derivative is a measure of the instantaneous rate of change, which is equal to,

$f’(x) = \lim_{h\to 0}\frac{f(x + h) - f(x)}{h}$

This formula allows us to determine the rate of change of a function at a specific point by using the limit definition of the derivative.

Proof of derivative of 4 to the power x by first principle

To prove the derivative of 4^x by using the first principle, replace f(x) by 4^x or you can replace it with 4^x to find the derivative of 3^x

$f(x) = \lim_{h \to 0} \frac{f(x + h) - f(x)}{h}$

$f'(x) = \lim_{h \to 0} \frac{4^{x + h} - 4^x}{h}$


$f'(x) = \lim_{h \to 0} \frac{4^x+4^h-4^x}{h}$

$f'(x) = \lim_{h \to 0} \frac{4^x(4^h-1)}{h}$

When h approaches to zero,

$\lim_{h\to 0}\frac{4^h-1}{h}=\log 4$


$f'(x) = 4^x \log 4$

Hence the differentiation of 4 x is equal to 4^x log 4. You can also use our derivative definition calculator to simplify the above calculations easily. 

Derivative of 4^x by Logarithmic Differentiation

Logarithmic differentiation is a technique of solving derivatives of logarithmic functions. A logarithmic function is the inverse of an exponential function and can be written using a base of 10. It is a method of finding derivatives of complex functions by applying logarithms.

Proof of differentiating of 4^x by Logarithmic Differentiation

To differentiate of 4^x by using the logarithmic differentiation, we start by assuming that,

$y = 4^x$

Taking log on both sides.

$\log y=\log 4^x$

$\log y=x \log 4$

Now differentiating on the both sides, 

$\frac{d}{dx} (\log y) = \log 4\frac{dx}{dx}$

Since the derivative of ln x is equal to the reciprocal of x, therefore, 

$\frac{dy}{dx}.\frac{1}{y}= \log 4$


$\frac{dy}{dx} = y\log 4$

Substituting the value of y, we get

$\frac{dy}{dx} = 4^x\log 4$

Hence we can derive the derivative of 4 x by using two derivative rules i.e. delta method and the logarithmic differentiation. You can also calculate the 2^x derivative by using this method.

How to find the derivatives of 4^x with a calculator?

The easiest way of differentiating 4^x is by using an online calculator. You can use our derivative calculator for this. Here, we provide you a step-by-step way to calculate derivatives by using this tool.

  1. Write the function as 4^x in the enter function box. In this step, you need to provide input value as a function that you want to differentiate.
  2. Now, select the variable by which you want to differentiate 4^x. Here you have to choose x.
  3. Select how many times you want to calculate the differentiation of 4 to the power x. In this step, you can choose 2 to calculate the second derivative, 3 for the third derivative and so on.
  4. Click on the calculate button. After this step, you will get the derivative of 4 to the power x within a few seconds.

After completing these steps, you will receive the differential of 4^x within seconds. Using online tools like differentiation calculator can make it much easier and faster to calculate derivatives, especially for complex functions.


In conclusion, the derivative of 4 x is 4^x log 4. The derivative measures the rate of change of a function with respect to its independent variable, and in the case of 4^x, the derivative can be calculated using the first principle of derivative and the logarithmic differentiation.

Frequently Asked Questions

What is the derivative of 4^x?

The differentiation of 4^x is equal to the product of 4^x and log 4. It is denoted by d/dx(4^x) and written as d/dx(4^x) = 4^x log 4, where 4 is a constant. 

What is the derivative of 1 by x?

The derivative of 1 by x is equal to the negative of 1/x^2. It is denoted by d/dx(1/x) which is equal to -1/x^2.

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