KatanaBlade
Mon Oct 28 2024
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7 answers
1465
How do you identify an injective function?
I'm trying to understand how to determine if a function is injective. I know it involves checking if every element in the domain maps to a unique element in the codomain, but I'm not sure how to apply this in practice.
benjamin_brown_entrepreneur
Sat Oct 26 2024
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5 answers
1086
How do I identify US coins?
I'm trying to figure out how to identify US coins. I want to know the features or characteristics that can help me distinguish different coins from each other, especially in terms of their value, denomination, and possibly the year they were minted.
Alessandro
Fri Oct 25 2024
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0 answers
0
How can you tell a PayPal scammer?
I received a suspicious email from someone claiming to be from PayPal, asking for my personal information. I'm worried that it might be a scam. How can I identify if it's really a PayPal scammer?
Silvia
Wed Oct 23 2024
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0 answers
0
How to tell if you have a rare 1964 Kennedy Half Dollar?
I have a 1964 Kennedy Half Dollar and I'm wondering if it's rare. How can I determine its rarity? Is there a specific mint mark or other identifying feature that would indicate it's special?
Caterina
Wed Oct 23 2024
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0 answers
0
How do you identify euro coins?
I'm trying to figure out how to identify euro coins. I want to know the specific features or marks that can help me distinguish them from other coins. Can someone guide me through this?
