# 9/11/2008

## Problem Session

## Example - projection by hand

## Generalization

## Notation from the textbook

## Example - Rotation by hand

## Standard matrix for linear transformation T

## Inverses

## Unique solution theorem

- Easy case (n = 2)
- The general form of the inverse for a 2x2 matrix A

## Please read Sections 2.3, 2.4 and 3.1 for class on Tuesday