Here, we show you a step-by-step solved example of indefinite integrals. This solution was automatically generated by our smart calculator:
We can solve the integral by applying integration by substitution method (also called U-Substitution). First, we must identify a section within the integral with a new variable (let's call it ), which when substituted makes the integral easier. We see that it's a good candidate for substitution. Let's define a variable and assign it to the choosen part
Differentiate both sides of the equation
Find the derivative
The derivative of a sum of two or more functions is the sum of the derivatives of each function
The derivative of the constant function () is equal to zero
The power rule for differentiation states that if is a real number and , then
Now, in order to rewrite in terms of , we need to find the derivative of . We need to calculate , we can do that by finding the derivative of the equation above
Isolate in the previous equation
Simplify the fraction by
Substituting and in the integral and simplify
Take the constant out of the integral
Applying the power rule for integration, , where represents a number or constant function, in this case
When multiplying two powers that have the same base (), you can add the exponents
The power of a quotient is equal to the quotient of the power of the numerator and denominator:
Simplify the expression
Replace with the value that we assigned to it in the beginning:
Replace with the value that we assigned to it in the beginning:
As the integral that we are solving is an indefinite integral, when we finish integrating we must add the constant of integration
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