waecmaths question:
Given that $T=\{x:-2<x\le 9\}$ where x is an integer . What is n(T)
Option A:
9
Option B:
10
Option C:
11
Option D:
12
waecmaths solution:
$\begin{align} & T=\{x:-2<x\le 9\} \\ & T=\{-1,0,1,2,3,4,5,6,7,8,9\} \\ & n(T)=11 \\\end{align}$
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