Which of the following is not a rational number? *
a.-7/9
b.0/9
c.7/0
d.none of these
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FRIENDS HERE THE OPTION (B) AND (C) IS NOT A RATIONAL NUMBER BECAUSE A RATIONAL NUMBER FORMS WHEN THAT NUMBER IS IN FORM OF P/Q IN WHICH P AND Q IS NOT EQUAL TO 0 AND AS WE CAN SEE HERE 0/9 'S NUMERATOR (0) IS EQUAL TO 0 , AND IN OPTION C DENOMINATOR IS EQUAL TO 0.
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