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Considere as seguintes retas e as afirma&ccedil;&otilde;es a seguir.

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I - As retas nunca se cruzam.

II - As retas se encontram em um &uacute;nico ponto de abscissa positiva.

III - As retas s&atilde;o perpendiculares.

&nbsp;

Quais est&atilde;o corretas?

Questão

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