Consider the series > an where n=1 (-4n + 7)2n an = (-2n – 9)2n In this problem you must attempt to use the Root Test to decide whether the series converges. Compute L = lim Vlan n-00 Enter the...

Extracted text: Consider the series > an where n=1 (-4n + 7)2n an = (-2n – 9)2n In this problem you must attempt to use the Root Test to decide whether the series converges. Compute L = lim Vlan n-00 Enter the numerical value of the limit L if it converges, INF if it diverges to infinity, MINF if it diverges to negative infinity, or DIV if it diverges but not to infinity or negative infinity.