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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!
 7 months ago
 7 months 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!
 7 months ago
 7 months ago

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phiBest ResponseYou've already chosen the best response.0
I think 0= 0, so how about a≤0 ?
 7 months ago

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

mathstudent55Best ResponseYou've already chosen the best response.1
For 1. I agree with @phi, not with your book.
 7 months ago

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

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