Question: 2 (a) Find 5221110%7 without using a calculator. (b) Let n be an integer such that (3n+6)%4 = 0. Find (n2+2n+1)%4. Justify your answer. (c)

2 (a) Find 5221110%7 without using a calculator. (b) Let n be an integer such that (3n+6)%4 = 0. Find (n2+2n+1)%4. Justify your answer. (c) Let x,y be positive integers such that x divides 3y and x divides 4. Show that 2y + 1024 is a multiple of x
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