Answer:

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Answer:

2) Z = { }, {O}, {⇔}, {Δ}, {O,⇔}, {O,Δ}, {⇔,Δ}, {O,⇔,Δ}

3) M = { }, {black,white}

Yung ganito na symbol (⇔) eh rectangle wala kase ako mahanap na shape na rectangle kaya yan na ginamit ko

=)

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