Please explain in detail how to solve a) and b), thank you!

Universite d'Ottawa | University of Ottawa 9. (4 points) Decide if the following limits exist. For each one, if it exists, evaluate the limit exactly using algebraic methods, showing all steps. If it does not exist, justify your answer clearly using mathematical reasoning. (a) (2 points) lim 2-+00 V576 - 4x Your answer: (b) (2 points) lim 3- V25 -12 I +4 x - 4 Your