Can you please answer 2c

Calculus of One Variable 22 2. Denote by S the set of points described in braces. Determine by inspection supsx and infox when they exist, and state when they belong to S. (a) {x2-3xx} { 1x/+ /x-410} (i) {(-1)071(1 - 37 ) 1=1,2,... (1) 1+ n = 1, 2,... que on 3. (a) Show that ;(a + b +la- b[)=max(a, b) =larger of a and b. (b) Evaluate :(a+ b-la- bl). 4. Show that if S is bounded above and below, then there is an N 0 for which - N 1+ nx+- n(n-1) 2 x2 , x 20. (b) (1-x)" 1+ a, taz+ . . . + an, if all the a's are non- Proof: 2. Find the error: "All positive integers are equal to each other." (i) 1=1. (ii) Suppose that all in