Homework: Homework 2 Part 1 of 4 Use the given formal definition to prove the limit statement. lim = - DO X X-+0 The function f(x) approaches minus infinity as x approaches c from the left, written lim f(x) = - co, if, for every negative real number - B there exists a corresponding X - C number 8 > 0 such that for all x, c- 6 f(X) 0 such that for all x,