- #1

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## Homework Statement

It just wants me to tell whether this is improper or not.

[0,infinity] e^(-x^3) dx

## Homework Equations

I say Yes

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- Thread starter Jbreezy
- Start date

- #1

- 582

- 0

It just wants me to tell whether this is improper or not.

[0,infinity] e^(-x^3) dx

I say Yes

- #2

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I don't see why it would be improper. What's your reasoning?

- #3

- 582

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I'm not 100 percent sure. I said yes because I think it keeps going it's domain is all real.

- #4

Ray Vickson

Science Advisor

Homework Helper

Dearly Missed

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## Homework Statement

It just wants me to tell whether this is improper or not.

[0,infinity] e^(-x^3) dx

## Homework Equations

I say Yes

## The Attempt at a Solution

What definition of "improper integral" are you using?

- #5

Mark44

Mentor

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I would call this integral --## Homework Statement

It just wants me to tell whether this is improper or not.

[0,infinity] e^(-x^3) dx

## Homework Equations

I say Yes

## The Attempt at a Solution

$$\int_0^{\infty}e^{-x^3}dx$$

-- improper, because of the upper limit of integration.

- #6

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I'm just using the def in stewart calc. I think it is improper thanks.

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