I have a function: The domain for this is . The range is . How can I prove if it is one-to-one, onto, or both?
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Originally Posted by Projectt I have a function: The domain for this is . The range is . How can I prove if it is one-to-one, onto, or both? It is clearly not one-to-one: . Is it onto? If then is it possible that ?
Ohh, I thought Z was some arbitrary set, not the set of all integers. Thanks.
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