vault backup: 2025-11-07 10:34:24
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@ -5,7 +5,7 @@ Seja $f : A \rightarrow B$ função. Definimos **imagem** de $f$ ( $Im(f)$ ou $I
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>$D(f) = A$
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>$CD(f) = B$
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>$Im(f) = \{2,4,6,8,10\}$
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2. $g:\mathbb{R} \rightarrow \mathbb{R}$ com $y=g(x)=y^2$
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2. $g:\mathbb{R} \rightarrow \mathbb{R}$ com $y=g(x)=x^2$
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> $D(g) = \mathbb{R}$
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> $CD(g) = \mathbb{R}$
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> $Im(g) = \mathbb{R}_+ = [0, +\infty)$
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