Could you help me with my calc work?

Find the horizontal and vertical asymptotes of the curve. (Enter your answers as a comma-separated list, If an answer does not exist, enter DNE.) vex + x - 1 * + x - 42 horizontal asymptote(9) y = vertical asymptote(s) X =Evaluate the limit using the appropriate properties of limits. lim 4x-x+ 9 7+0 3x + 5x - 8\fFind the limit, if it exists. (If an answer does not exist, enter DNE.) lim . + + 2x )\fFind the limit. (If an answer does not exist, enter DNE.) lim cos x