Example: Simplifying an Expression
Sometimes a problem produces numerous mistakes. This one produced enough to justify breaking the mistakes into several separate pages.
The Context
This was a test question. Verify the identity:
For the purposes of these web pages the task is phrased as "Simplify the Expression". That's how I teach students to approach identity verification problems: simplify one side of the identity to the other (or simplify both sides separately to the same expression).
Continue on to the Mistakes:
