Answers

2014-01-16T15:40:36+05:30
Number system is divided into two : whole number and natural number.
examples: 0, 1, 2, 3........ for wholenumber
                1,2,3,4,5..........for natural number
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2014-01-16T17:34:38+05:30
IF IT INCLUDES 0 THEN ITS WHOLE NUMBER SYSTEM IF IT DOES'T NOT INCLUDE 0 THE ITS  NATURAL NUMBER SET 
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