Hi all, first post. I'm starting university next fall as a physics/math double major and I am taking Calculus I this summer so that I can take Physics I in the fall.
Here's the problem, we've been doing deltaepsilon proofs of limits. The class just started last thursday. I know how to do these proofs generally, and went through the homework. However, the professor asked if there were any math majors, and like an idiot I raised my hand, therefore I was "expected" to do an extra homework problem that he left out because it was "too hard."
Here it is:
Construct deltaepsilon proof.
I feel kind of embarrassed because I feel like I should be able to do it..
Prework:
0 <  x  4 
=>  [tex]\frac{\sqrt{2x1} }{ \sqrt{x3} }  \sqrt{7}[/math  <
And....
What would you do with


To get a  x  4  factor? As you can see, my problem is algebraic mainly...
Sorry if it's an easy one, I just don't know how to get my foot in the door!
Thanks!!