1. Find the domain of g(x) =- (22 - 20 - 15) 2. Find the following limits if they exist. If they don't exist, determine whether the limit goes to oo, -co or neither. 3x2 - 27 a lim x--3 x + 3 (b) lim 2-3(x-va), where a > 0 a constant. x- va 3TT 3. Use the Squeeze theorem to evaluate lim (e z ) . cos 4. Let f ( t ) = 3- at if t > 1 la+ (at ) ? if t