How can I integrate the composite root integral \int\sqrt{40t^2+e^t^2}dt?

In summary, To integrate the given expression, \int\sqrt{40t^2+e^t^2}dt, it is recommended to write the integrand as a series expansion and integrate term by term. However, the presence of a square root may complicate this strategy. Therefore, it is not possible to find a primitive in terms of elementary functions and an alternative method may be necessary.
  • #1
naphiefx
3
0
Homework Statement
[tex]\int\sqrt{40t^2+e^t^2}dt[/tex]

That should be e^t^2.
How would I go about doing this?
 
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  • #2
You can forget about a primitive in terms of elementary functions. It doesn't exist as is the case in most situations. What you could try is to write the integrand as a series expansion and integrate term by term.
 
  • #3
Cyosis said:
You can forget about a primitive in terms of elementary functions. It doesn't exist as is the case in most situations. What you could try is to write the integrand as a series expansion and integrate term by term.
That's generally good advice, but the square root in this case is going to complicate this strategy a lot!
 

What is a composite root integral?

A composite root integral is an integral that contains a combination of different types of roots, such as square roots, cube roots, etc. It requires a more complex approach to solve compared to a regular integral.

How do you solve a composite root integral?

To solve a composite root integral, you can use substitution, integration by parts, or other advanced integration techniques. The specific method used will depend on the form of the integral and the types of roots involved.

What are some common examples of composite root integrals?

Examples of composite root integrals include integrals with expressions such as √(x+1), ∛(x+2), ∜(x+3), and so on. These integrals may also involve trigonometric functions, logarithmic functions, or exponential functions.

Why are composite root integrals important in science?

Composite root integrals are important in science because they often arise in mathematical models and equations that describe physical phenomena. Solving these integrals allows scientists to calculate important quantities such as areas, volumes, and rates of change.

What are some useful tips for solving composite root integrals?

Some useful tips for solving composite root integrals include identifying the type of roots involved, using appropriate substitution or integration techniques, and simplifying the integral as much as possible before attempting to solve it. It is also important to carefully check the solution to ensure its validity.

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