Exercício C2 cap 21 ewd.png
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Exercício C 3 cap 21 ewd.png
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Exercício B 3 cap 21 ewd.png
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Exercício B 2 cap 21 ewd.png
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Exercício B 1 cap 21 ewd.png
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Exercício A 2 cap 21 ewd.png
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Exercicio C 1 cap 21 ewd.png
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Exemplo A 2 cap 21 ewd.png
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