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 one year ago
Check please??
1. Can it ever be true that a = a for real number a? Explain.
my answer: yes, if a < 0.
2. is it possible for a real number to be both rational and irrational? Explain.
my answer: no, b/c rational #s can be written as a fraction and irrational #s cannot.
Thank you!
 one year ago
Check please?? 1. Can it ever be true that a = a for real number a? Explain. my answer: yes, if a < 0. 2. is it possible for a real number to be both rational and irrational? Explain. my answer: no, b/c rational #s can be written as a fraction and irrational #s cannot. Thank you!

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phi
 one year ago
Best ResponseYou've already chosen the best response.0I think 0= 0, so how about a≤0 ?

greeneyes<3
 one year ago
Best ResponseYou've already chosen the best response.1okay, thanks! but my book said for #1 yes, a = a if a < 0.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1For 1. I agree with @phi, not with your book.

greeneyes<3
 one year ago
Best ResponseYou've already chosen the best response.1okay, thank you both! :)

phi
 one year ago
Best ResponseYou've already chosen the best response.0Interesting. Wolfram says otherwise http://www.wolframalpha.com/input/?i=for+real+x%2C++solve+%7Cx%7C+%3D+x
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