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

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c) Let S = {-1, 0, 2, 4, 7}. Find f (S) if f (x) =[ x/5] f (x) =L (x2 + 1)/ [3marks] [3marks] 1. 11. 1 d) Use x= and y = y%3D to prove that x+yl# x|+ |y for all real numbers x and y. | 2. 112 c) Let S = {-1, 0, 2, 4, 7}. Find f (S) if f (x) =[ x/5] f (x) =L (x2 + 1)/ [3marks] [3marks] 1. 11. 1 d) Use x= and y = y%3D to prove that x+yl# x|+ |y for all real numbers x and y. | 2. 112