Lab $2$: Working with Limits

Show all work on a separate sheet of paper with justifications where necessary. Answers should be clearly marked or boxed.

Print first and last names of each group member at the top of the page.

Evaluate the following limits$.$ Show all work to justify your solutions.

$($a$)\underset{x1}{lim}\frac{x^4-1}{x-1}$

$($b$)\underset{x1}{lim}\frac{x^3-x^2+x-1}{x^2-1}$

$($c$)\underset{x0}{lim}\frac{\sqrt[\phantom{2}]{4-x^2}-2}{x^2}$