The Fourth Gate You arrive at the fourth gate, feeling confident in your skills. "It is a good thing I had some practice before landing on this planet", you think. You look carefully at the gate and find the following information, translated by your computer: Each of the limits below represent a piece of the passcode that you must enter to proceed. The parameters a and c represent positive real numbers and should be treated as such in your answer. "Remember," says your computer, "to type "infinity" for o, "-infinity" for -, and "NA" if the limit does not exist." lim lim 2-00 lim 8118 ax71-11x+31 CI 66 66-31 ar -11x+31 az cz71-31 71-11x+31 cx71-31 www. wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww