Short improper integral question (how to rewrite?)

[vantz]

Homework Statement

Homework Equations

The Attempt at a Solution

I'm trying to rewrite the integral as shown

Most probably a real simple answer

Thank you

 

[CompuChip]

In the first integral, try substituting x for -x.

 

[vantz]

I don't understand, wouldn't that be illegal to do?

 

[Dick]

I don't understand, wouldn't that be illegal to do?

Yes, it would. But Compuchip meant to do a u-substitution. u=(-x), du=(-dx).

 

[CompuChip]

Exactly. And don't forget the integration boundaries as well.

 

[vantz]

I have it now. Thank you