(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the upper bound for

[tex]\int[/tex] (from 3 to infinity) e^(-x^2)

[hint: e^(-x^2) < e^(-3x) for x>3]

3. The attempt at a solution

I don't understand what they mean by "upper bound"

Are they asking for the upper bound for the area below e^(-x^2)

for 3<x<infinity ?

I knew that the function converges by graphing the function

y= e^(-x^2) and y=e^(-x) and comparing between those two,

but I'm not sure what the problem is asking for.

Pleas help me witht the start!

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Comparisons of imporper integrals

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