Evaluate the limit using techniques from Chapters 1 and 3 and using L'Hopital's Rule. lim 6 - 6 cos(x) X- 0 12x (a) using techniques from Chapters 1 and 3 6/12 X (b) using L'Hopital's Rule 6/12 XEvaluate the limit, using L'Hopital's Rule if necessary. (If the limit is infinite, enter 'co' or '-co', as appropriate. If the limit does not otherwise exist, enter DNE.) lim X - 0 8 - x4 DNE X