Use the squeezing theorem to find lim x cos (300/x) Find a number & such that | (6x - 5)-7| <0.30 whenever | x - 2| <8. Show your work algebraically or graphically. Find all points of discontinuity of the function -1 ; x<0 x+1 f(x)= ; 0≤x≤1 2x-1 (2 ; 1