Derivative of x

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

Alan Walker-

Published on 2023-05-26

Introduction to the derivative of x

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

What is the derivative of x?

The derivative of x with respect to the variable x is equal to 1. It measures the rate of change of the algebraic function x. It is denoted by d/dx(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 x formula

The formula for derivative of f(x)=x is equal to the constant 1, that is;

f'(x) = d / dx (x) = 1

How do you differentiate of x?

There are various ways to prove the differentiation of x. These are;

  1. First Principle

  2. Product Rule

  3. Quotient Rule

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

Derivative of x by first principle

According to the first principle of derivative, the x derivative is equal to 1. 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 f(x + h) - f(x) / h

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

Proof of x derivative formula by first principle

To prove the derivative of e by using first principle, replace f(x) by x or you can replace it by ln x to find ln derivative. f(x) = limh→0f(x + h) - f(x) / h

f(x) = lim (x + h) - x / h


f(x) = lim h / h

When h approaches to zero,

f(x) = 1

Hence the differentiation of x is equal to 1.

Derivative of x by product rule

The formula for derivative x can be calculated by using product rule because an algebraic function can be written as the combination of two functions. The product rule derivative is defined as;

[uv] = u.v + u.v

Proof of differentiating of x by product rule

To differentiate of x by using product rule, we start by assuming that,

f(x) = 1. x

By using product rule of differentiation,

f(x) = (1). x + (x)

We get,

f(x) = 0 + 1


f(x) = 1

Moreover, to differentiate any algebraic funciton with some power, you can use our product rule calculator as it uses the derivative product rule.

Derivative of e to the x using quotient rule

Another method for finding the differential of x is using the quotient rule, which is a formula for finding the derivative of a quotient of two functions. Since the secant function is the reciprocal of cosine, the derivative of cosecant can also be calculated using the quotient rule. The derivative quotient rule is defined as:

d / dx (f/g) = f(x). g(x) - g(x).f(x) /{g(x)}2

Proof of differentiating x by quotient rule

To prove the x derivative formula, we can start by writing it,

f(x) = x/1 = u/v

Supposing that u = x and v = 1. Now by quotient rule,

f(x) = (vu - uv) / v2

f(x) = [1 d / dx(x) - x. d / dx(1)] / (1)2

= [(1) - x(0)] / 1

= 1 / 1

= 1

Hence, we have derived the derivative of x using the quotient rule calculator.

How to find the derivatives of x with a calculator?

The easiest way of differentiating x is by using dy/dx 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 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 x. Here you have to choose x.
  3. Select how many times you want to calculate the derivatives of x. In this step, you can choose 2 for second, 3 for triple differentiation and so on.
  4. Click on the calculate button. After this step, you will get the derivative of x within a few seconds.

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

Related: Also learn how to find the derivative of x^2/3 by using power rule of derivatives.

Frequently Asked Questions

What is derivative of 2x?

The derivative of 2x is 2. It is because, when the power of x is 1 then according to power rule of derivatives, the derivative of 2 x is,

d / dx (2x) = 2 (1) x1 - 1 (1) = 2

How do you do derivatives easily?

The derivative is a key concept in calculus that helps to calculate rate of change of any function. The derivative of a function can easily calculated by using differentiation rules such as power rule, quotient rule, multivariate chain rule and product rule.

What is difference between derivative and differentiation?

The derivative is the measure of rate of change in a function with respect to an independent variable. Whereas the process of finding derivative is known as differentiation.

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