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Let A={2,4,8,16,32) and B={4,16} Show th...

Let A={2,4,8,16,32) and B={4,16} Show that `A cup B=A`

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A={2,4,8,16,32}
B={4,16}
Clearly, `B subset A`
`A cup B={2,4,8,16,32}=A (therefore B subset A" then "A cup B=A)`
So, `A cup B=A`
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