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Mathematics 21 Online
OpenStudy (kpop4life123):

Which of the following statements is false? (5 points) The sum of two rational numbers is always rational. The product of a nonzero rational number and an irrational number is always irrational. The product of two rational numbers is always rational. The sum of two irrational numbers is always rational.

OpenStudy (welshfella):

I'm puzzled a bit - I think these are all true... Are you sure you have the question right?

OpenStudy (kpop4life123):

yes i do

OpenStudy (welshfella):

OH Sorry i misread one of them.

OpenStudy (kpop4life123):

:)

OpenStudy (cp123):

D

OpenStudy (welshfella):

Hint:- : lets take 2 irrational numbers and add them sqrt3 + sqrt3 = what?

OpenStudy (cp123):

The product of two irrational numbers can be BOTH irrational or rational. Not just rational. So, D is false.

OpenStudy (kpop4life123):

oh ok

OpenStudy (welshfella):

D is talking about the SUM not the product.

OpenStudy (kpop4life123):

so which one is it?

OpenStudy (welshfella):

Look at my hint This should help.

OpenStudy (kpop4life123):

oh ok thanks :)

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