<http://webisa.webdatacommons.org/142401855>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/516172427>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/142401855> .
<http://webisa.webdatacommons.org/142401855>	<http://www.w3.org/ns/prov#value>	"Quote:In the question, it is not mentioned that a or b is a constant ???a and b are variables.Quote:???  |a| + |b| = 0  does not guarantee that a and b are 0 ???Any absolute value is non-negative." .
<http://webisa.webdatacommons.org/142401855>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<gmat-mba-prep.com> .