How do i integrate this "e^[−(x/xa)]

[cutlerblows]

how do i integrate this "e^[−(x/xa)]

 

[Mark44]

Does xa mean x*a, or is it a variable different from x?

 

[Focus]

Errr... Do you mean $e^{\frac{x}{xa}}$ ? If so just cancel the x. You also need to show some working out and should have a more discriptive title. We are here to help not to do homework.

 

[HallsofIvy]

On the other hand if you mean x_a, some fixed (constant) value, then use the substitution u= x/x_a.

 

[cutlerblows]

i meant x subscript a. but i figured out the answer. and fyi this is not my homework. I am studying for my physics test. but thanks for being rude...