dsgrin
dsgrin dsgrin
  • 06-12-2016
  • Mathematics
contestada

For all real numbers a and b, if ab=0, then a=0 or b=0. True or false?

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shynnyooksj shynnyooksj
  • 06-12-2016
True. For example, if 2 is a, and b was 0, then ab would automatically be 0. Both a and b can be 0 though, but at least one of them must be zero.
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Madlix0329
Madlix0329 Madlix0329
  • 06-12-2016
False I think because the variables are right next to each other which means it's multiplying and 0×0 equal 0
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