Question: c) Let S = {-1, 0, 2, 4, 7}. Find f (S) if i. f (x) =[ x/5] ii. f(x) =L (x + 1)/3).

c) Let S = {-1, 0, 2, 4, 7}. Find f (S)

c) Let S = {-1, 0, 2, 4, 7}. Find f (S) if i. f (x) =[ x/5] ii. f(x) =L (x + 1)/3). [3marks] [3marks] d) Use x = and y = 1 to prove that x+yl# [x]+ [yl for all real numbers x and y.

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