Mathematics · Relations and Functions
Let A = {-2, -1, 0, 1, 2, 3, 4}. Let R be a relation on A defined by xRy if and only if 2x + y ≤ 2. Let l be the number of elements in R. Let m and n be the minimum number of elements required to be added in R to make it reflexive and symmetric relations respectively. Then l + m + n is equal to:
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