How Do You Solve This Challenging Integral Involving Trigonometric Substitution?

In summary, an extremely hard integral is a challenging mathematical problem that involves finding the antiderivative of a complex function. These integrals are difficult to solve because they require advanced techniques and can take a long time to solve. To approach solving an extremely hard integral, it is important to identify the type of integral and apply appropriate techniques to simplify it. Tips for solving extremely hard integrals include breaking them down into smaller parts, trying different techniques and approaches, and using computer software or online resources. Being able to solve extremely hard integrals is important in various fields and real-world applications, and can also help develop critical thinking and problem-solving skills.
  • #1
Nikitin
735
27

Homework Statement


integrate the following function: x*√(2x-x2)


Homework Equations


substitutions?


The Attempt at a Solution


I substituted x with x=2sin2u. From that I ended up with ∫x*√(2x-x2)= 16∫sin4u*cos2u

Now I'm supposed to use a formula from an integrals table.. but which?
 
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  • #2
You should complete the square under the sqrt. [itex] \displaystyle{\sqrt{1-(1-x)^2}}[/itex] and then make the natural substitution.
 
  • #3
edit: nvm
 
Last edited:

Related to How Do You Solve This Challenging Integral Involving Trigonometric Substitution?

1. What is an extremely hard integral?

An extremely hard integral is a type of mathematical problem that involves finding the antiderivative of a complex function. These integrals require advanced techniques and can be challenging to solve.

2. Why are extremely hard integrals difficult to solve?

Extremely hard integrals are difficult to solve because they involve complex functions that cannot be easily integrated using traditional methods. They often require advanced mathematical techniques and can take a long time to solve.

3. How do you approach solving an extremely hard integral?

The first step in solving an extremely hard integral is to identify the type of integral it is, such as trigonometric, exponential, or logarithmic. Then, you can apply appropriate techniques, such as substitution or integration by parts, to simplify the integral and make it more manageable.

4. Are there any tips for solving extremely hard integrals?

One tip for solving extremely hard integrals is to break them down into smaller, more manageable parts. You can also try different techniques and approaches, and practice solving similar integrals to improve your skills. Additionally, using computer software or online resources can help you check your work and provide step-by-step solutions.

5. Why is it important to be able to solve extremely hard integrals?

Solving extremely hard integrals is important in many areas of science and engineering, such as physics, chemistry, and economics. They are also used in real-world applications, such as calculating areas and volumes, and can help develop critical thinking and problem-solving skills.

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