# 9. Integration Using Tables of Integrals

by M. Bourne

### Leibniz's original integral notation

Gottfried Leibniz's original notation for integrals included an overbar, similar to what we use with square roots today. [Image source]

A lot of the integrals in this section can easily be done
using a **Table of Integrals.** (Of course, use a
computer to do integrals whenever you can!)

Points to note:

- It's very important to understand the substitutions `u` and `du` (which is the case for most integrations)
- Make sure you use the correct formula!! Some are very similar to others.
- Even if you are supplied with a table of integrals in examinations,
**learn**as many as you can, and especially learn the conditions that apply. Too many students try to find the right one in the table, but have no idea what they are doing!

See: Table of Common Integrals

### Example using Table of Integrals

Find the following integral, using table of integrals:

`inte^(2x)\ sin\ 3x\ dx`

There are some more examples of using the Table of Integrals in the section, Integration by Reduction Formulae.

### Search IntMath, blog and Forum

### Online Algebra Solver

This algebra solver can solve a wide range of math problems.

Go to: Online algebra solver

### Calculus Lessons on DVD

Math videos by MathTutorDVD.com

Easy to understand calculus lessons on DVD. See samples before you commit.

More info: Calculus videos

### The IntMath Newsletter

Sign up for the free **IntMath Newsletter**. Get math study tips, information, news and updates each fortnight. Join thousands of satisfied students, teachers and parents!