- #1
Nea
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Can you help me to solve this integral?
[tex]\int {\frac{{x^3 + 1}}{{x(x^3 - 8)}}} dx[/tex]
[tex]\int {\frac{{x^3 + 1}}{{x(x^3 - 8)}}} dx[/tex]
Orion1, do you think that the latter integral look much more complicated than the former one??Orion1 said:
...[tex]\int \left(x^3 + 1\right)\left(\frac{1}{x^4-8x}\right)dx = \left(x^3 + 1\right)\left[\frac{\ln \left(x^3 - 8\right)}{24} - \frac{\ln\left(x\right)}{8}\right] - \int \left[\frac{\ln \left(x^3 - 8\right)}{24} - \frac{\ln\left(x\right)}{8}\right]\left(3x^2\right)dx[/tex]
AffirmativeVietDao29 said:much more complicated than the former one??
An integral is a mathematical concept that represents the area under a curve on a graph. It is used to find the total quantity or value of something that is continuously changing.
The process for solving an integral varies depending on the type of integral. Generally, it involves identifying the function or curve, finding an appropriate formula or method, and then applying it to find the solution. It may also involve using mathematical techniques such as substitution, integration by parts, or partial fractions.
There is no single method that can be used to solve all integrals. It is important to carefully examine the integral and identify any patterns or similarities to previous integrals that you have solved. This will help you determine which method or formula to use.
Yes, many calculators and computer software programs have built-in functions for solving integrals. However, it is important to understand the steps involved in solving an integral by hand before relying on technology.
You can check your solution by taking the derivative of the integral. If the derivative matches the original function, then your solution is correct. You can also use an online integral calculator or ask a fellow mathematician or teacher to review your work.