Using distance formula (x1-x2)^2 + (y1-y2)^2. What is the distance between point(-5,3) and point (9,1)

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.