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1.01 Subsets of the real number system

Interactive practice questions

Is the following statement true or false?

$3$3$\in$$\left\{2,4,5,8\right\}${2,4,5,8}

True

A

False

B
Medium
< 1min

Is the following statement true or false?

$1$1$\in$$\left\{9,8,6,5,1\right\}${9,8,6,5,1}

Medium
< 1min

Is the following statement true or false?

$7$7$\notin$$\left\{6,5,4,2\right\}${6,5,4,2}

Medium
< 1min

List the elements in the set {$x$x$\mid$$x$x is a natural number less than $5$5}.

Medium
< 1min
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