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Determine if A is a Proper Subset of B

$A = (0, 1, 2)$ , $B = (0, 1, 2, 10)$

Step 1

$A$ is a subset of $B$ and $A$ is not equal to $B$ , which is the definition of a proper subset..

$A = (0, 1, 2)$ is a proper subset of $B = (0, 1, 2, 10)$

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$