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4 years ago

Which answer is correct

Mathematics

1 answer:

andre [41]4 years ago

7 0

Hello from MrBillDoesMath!

Answer:

The first choice, Pi + (-Pi) = 0

Discussion:

Pi is an irrational number. Saying the irrational numbers are closed under addition means if we add two irrational numbers we will get another irrational number. In our case, Pi + (-Pi) = 0, which is correct, BUT 0 is a rational number. This shows the set of irrational numbers is NOT closed under addition.

Thank you,

MrB

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