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  3. 22 is the set r closed under multiplication if your...

Question: 22 is the set r closed under multiplication if your...

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22. Is the set R closed under multiplication? If your answer is yes, provide two (2) typical examples of a multiplication of two negative real numbers illustrating this; if your answer is no, provide one (1) counterexample showing the non-closure. 23. Is the set R closed under the process of finding positive square roots? If your answer is yes, provide two (2) typical examples of positive square roots of real numbers illustrating this; if your answer is no, provide one (1) counterexample showing the non-closure. 24. Is the set R closed under the process of finding cube roots? If your answer is yes, provide two (2) typical examples of cube roots of real numbers ilhustrating this; if your answer is no, provide one (1) counterexample showing the non-closure.
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