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Sets, Relations...

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    25 people for programme A, 50 people for programme B, 10 people for both. So, number of employee employed only A is

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    Let X = {1,2,3,4,5} and Y = {1,3,5,7,9}. Which of the following is/are relations from X to Y

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    Let P = {(1, y)| x2 + y2 = 1, x, y ϵ R}. then P is

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    Let R be an equivalence relation on a finite set A having n elements. Then the number of ordered pairs in R is

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