How to Find the Indefinite Integral for (4x^2+2√x+1)/(2x√x)?

In summary, we are given the integral ∫▒〖(4x^2+2√x+1)/(2x√x) dx〗 and we use the power rule and the substitution method to simplify it to 4/3 √(x^3 )+ln⁡x-1/√x+C. To check our work, we can take the derivative of this solution.
  • #1
KMcFadden
28
0

Homework Statement


∫▒〖(4x^2+2√x+1)/(2x√x) dx〗


Homework Equations





The Attempt at a Solution


∫▒〖(4x^2+2√x+1)/(2x√x) dx〗
∫▒((4x^2)/(2x^(3/2) )+(2√x)/(2x^(3/2) )+1/(2x^(3/2) ))dx
2∫▒x^(1/2) dx+∫▒〖x^(-1) dx〗+1/2 ∫▒x^(-3/2) dx
2×2/3 x^(3/2)+ln⁡x+1/2×(-2) x^(-1/2)+C
4/3 x^(3/2)+ln⁡x-x^(-1/2)+C
4/3 √(x^3 )+ln⁡x-1/√x+C
 
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  • #2
KMcFadden said:

Homework Statement


∫▒〖(4x^2+2√x+1)/(2x√x) dx〗

Homework Equations



The Attempt at a Solution


∫▒〖(4x^2+2√x+1)/(2x√x) dx〗
∫▒((4x^2)/(2x^(3/2) )+(2√x)/(2x^(3/2) )+1/(2x^(3/2) ))dx
2∫▒x^(1/2) dx+∫▒〖x^(-1) dx〗+1/2 ∫▒x^(-3/2) dx
2×2/3 x^(3/2)+ln⁡x+1/2×(-2) x^(-1/2)+C
4/3 x^(3/2)+ln⁡x-x^(-1/2)+C
4/3 √(x^3 )+ln⁡x-1/√x+C
It looks good. Take the derivative to check it.
 
  • #3
Thanks
 

1. What is the definition of an indefinite integral?

An indefinite integral is a mathematical concept that represents the antiderivative of a given function. It is a fundamental operation in calculus and is used to find the original function from its derivative.

2. How do you find the indefinite integral of a function?

To find the indefinite integral of a function, you must use integration techniques such as u-substitution, integration by parts, or trigonometric substitution. It is important to also include the constant of integration, as the indefinite integral represents a family of functions.

3. What is the difference between a definite and indefinite integral?

A definite integral has specific limits of integration and represents the area under a curve between those limits. An indefinite integral has no limits and represents a general function that can be differentiated to get the original function.

4. Can all functions be integrated?

No, not all functions have an indefinite integral. Some functions, such as exponential and trigonometric functions, have indefinite integrals, while others, like the gamma function, do not have an indefinite integral.

5. What are the applications of finding indefinite integrals?

Finding indefinite integrals is used in many fields of mathematics and science, such as physics, engineering, and economics. It is used to solve various real-world problems, including finding areas and volumes, determining work and energy, and modeling rates of change.

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