# Antiderivative Calculator

To use antiderivative (integral) calculator select the type (definite or indefinite), input the function, fill the required input boxes, & hit calculate button

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- Definite integral
- Indefinite integral
- Select the
*definite*or*indefinite*option. - Enter the function in the given input box.
- Click the
button if you want to use a sample example.*Load Example* - Specify the variable. It is set as
by default.*x* - Enter the
*Upper*and*Lower*bound limit if you chose the*definite*integral above. - Hit the
*Calculate*button. You will get the result with step-by-step calculations. - Apply the sum rule. Write integration sign with each variable separately.
- Apply the power rule on both expressions to evaluate the exponents.
- Apply the constant rule which leaves
with the final expression.*C* - Rearrange the function as below.
- Apply the sum rule to the function.
- Solve each expression in the above function by implementing integral rules.
- Substitute the solve values in Equation 1.
- Simplify the equation if needed.
- What is antiderivative? with Rules, Formula, & examples, From Study.com
- Integral Definition by Openstax.org

## Antiderivative calculator with steps

Antiderivative calculator finds the antiderivative of a function step by step with respect to a variable i.e., *x*, *y*, or *z*. This online integration calculator also supports *upper bound* and *lower bound* in case you are working with minimum or maximum value of intervals.

With this integral calculator, you can get step-by-step calculations of:

It can find the integrals of logarithmic as well as trigonometric functions. This tool assesses the input function and uses integral rules accordingly to evaluate the integrals for the area, volume, etc.

## How does antiderivative calculator work?

You can find the antiderivative (integral) of any function by following the steps below.

You can download the solution by clicking on the icon.

## What is an Integral?

An integral can be defined as,

“Integral assigns numbers to functions in a way that describes volume, area, displacement, and other ideas that arise by combining infinitesimal data.”

The process of finding integrals is called integration. Integral is also referred to as antiderivative because it is a reverse operation of derivation.

Along with differentiation, integration is an essential operation of calculus and serves as a tool to solve problems in mathematics and physics involving the length of a curve, the volume of a solid, and the area of an arbitrary shape among others.

The integral of a function *f***( x)** with respect to a real variable

**on an interval**

*x***is written as:**

*[a, b]*\(\int _a^bf\left(x\right)dx\:\)

## How to find Antiderivative (Integral)?

See the below examples to learn how to evaluate definite and indefinite integrals using rules of integration.

**Example # 1**

### Definite Integral

Evaluate \(\int _0^1\left(\sqrt{x}+\sqrt[3]{x}\right)dx\:\)

**Solution:**

\(\int _0^1\sqrt{x}dx+\int _0^1x^{\frac{1}{3}}dx\:\)

The above function can be written as:

\(=\int _0^1x^{\frac{1}{2}}dx+\int _0^1x^{\frac{1}{3}}dx\:\)

**Power Rule: **\(\int x^ndx=\frac{x^{n+1}}{n+1}\:\)

\(=\left[\frac{x^{\frac{1}{2}+1}}{\frac{1}{2}+1}\right]^1_0+\left[\frac{x^{\frac{1}{3}+1}}{\frac{1}{3}+1}\right]^1_0\)

\(=\:\left[\frac{x^{\frac{3}{2}}}{\frac{3}{2}}\right]^1_0+\left[\frac{x^{\frac{4}{3}}}{\frac{4}{3}}\right]^1_0\)

\(=\:\left[\frac{2x^{\frac{3}{2}}}{3}\right]^1_0+\left[\frac{3x^{\frac{4}{3}}}{4}\right]^1_0\)

**Constant Rule:**

\(=\frac{2}{3}\left[x^{\frac{3}{2}}\right]^1_0+\frac{3}{4}\left[x^{\frac{4}{3}}\right]^1_0\)

\(=\frac{2}{3}\left[1^{\frac{3}{2}}-0^{\frac{3}{2}}\right]+\frac{3}{4}\left[1^{\frac{4}{3}}-0^{\frac{4}{3}}\right]\)

\(=\frac{2}{3}\left[1-0\right]+\frac{3}{4}\left[1-0\right]\)

\(=\frac{2}{3}+\frac{3}{4}\)

\(=\frac{17}{12}=1.4167\)

**Example # 2**

### Indefinite integral

Evaluate \(\int \left(3x^2−6x+2sin\left(x\right)\right)dx\)**Solution:**

\(\int \left(2sin\left(x\right)+3x^2−6x\right)dx\)

**Sum Rule: **\(\int \left(f+g\right)dx=\int f\:dx+\int g\:dx\)

\(=2\int sin\left(x\right)dx+3\int x^2dx−6\int xdx\) ... Equ. 1

\(\int sin\left(x\right)dx=-cos\left(x\right)\) ------- d/dx sin(x)=cos(x)

\(\int x^2dx=\frac{x^3}{3}\:\) ------- Power rule applied.

\(\int xdx=\frac{x^2}{2}\:\) ------- Power rule applied. Refer to previous example

\(=2\int sin\left(x\right)dx+3\int x^2dx−6\int xdx\)

\(=-2cos\left(x\right)+\frac{3x^3}{3}−\frac{6x^2}{2}+C\)

** C** is added because of the constant rule.

\(=-2cos\left(x\right)+x^3−3x^2+C\)

## FAQs

### What is the integral of 1/x?

The integral of ** 1/x** is an absolute value:

*ln (*

*|x***It is a standard integration value.**

*|) + C.*### What is the difference between definite and indefinite integral?

A definite integral denotes a number when the upper and lower bounds are constants. On the other hand, the indefinite integral is a family of functions whose derivatives are *f*. The difference between the two functions is a constant.

### What is the antiderivative of *tan(x) dx*?

The antiderivative of ** tan(x) dx** is,

**tan x** **= - ln |cos x| + C**

### What is the antiderivative of 1/x^2 dx?

**-1/x + C** is the antiderivative of 1/x^2

### References

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