f(x)=sin x+1 on [-7, 7|. The Riemann sum, given that the interval is divided into 4 sub-intervals of equal length and the points chosen are the left endpoints, is 27 2 47

Let f be the function given by f (x) A (B) C D (-∞0, 1] [-1,3] [1,00) (-∞, -1] and [3, ∞) T 10 (-t² + 2t + 3) dt. On what intervals is f increasing? SVET

Let f(n) and g(n) be functions satisfying  f(n) = {sqrt (n), 1 + f(n+1)} if sqrt (n) is an integer otherwise and g(n) = {sqrt (n), 2 + g(n+2)} if sqrt (n) is an integer othersiwe for postiive integers n. Find the least positive integer n such that f(n)/g(n) = 4/7

find f prime of x