The first challenge it is quite simple: Try to explain the following situations:
- What values of $a$ would make the expression $\sqrt{a} < a$ be true?
- What values of $a$ would make the expression $\sqrt{a} > a$ be true?
You must follow the usual instructions: once you know the solution, post a comment and send the answer to my gmail account which you should remember...
And do not worry about the Radicals! In October an old friend of yours will be baaaack!! :D
Exercises 75, 76 and 77: PDF VERSION
