# Integrals of the exponential function

1. Jan 13, 2010

### magnifik

Last edited: Jan 13, 2010
2. Jan 14, 2010

### HallsofIvy

Staff Emeritus
What is the problem? You are told exactly what to do so do it! You are told that $e^x\ge 1$ for all $x\ge 0$ so
$$\int_0^x e^t dt\ge \int_0^x dt$$
What does that give?