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WAEC - Mathematics (2010 - No. 10)

Given that = {x: -2 < x \(\leq\) 9}, where x is an integer what is n(T)?
9
10
11
12

解释

T = {-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

n(T) = 11

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