Question

Find the cardinality of b= {7,14,21,28,35,42,49,56}

Answer 1

$Given \:set \:B = \{ 7,14,21,28,35,42,49,56 \}$

$Cardinality \: Set \: B \\= n(B) \\= Number \:of \: elements \: in \:the \:set \\= 8$

Therefore.,

$\red { Cardinality \: Set \: B} \green {= 8}$

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