Question 3 (Mandatory) (10 points) f the function f (x) = =x2 - 4 so that the function is one-to-one and has tate the range of the restricted function. Then find the inverse function main and range of f-1. Question 4 (Mandatory) (10 points) Determine if the limits of the following functions exist. If the limit exists, 12 +t-2Question 3 (Mandatory) (10 points) Restrict the domain of the function f (x) = = x2 - 4 so that the function i an inverse function. State the range of the restricted function. Then find t 1. State also the domain and range of f-1. Question 4 (Mandatory) (10 points) Determine if the limits of the following functions exist. If the limit exists, 1