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Chapter 1 Class 9 Number Systems
Serial order wise


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Ex 1.1, 1 Is zero a rational number? Can you write it in the form 𝑝/𝑞, where p and q are integers and q ≠ 0.Yes, 0 is a rational number. And, 0 can be written as 0=0/1 0=0/(−1) 0=0/2 … etc Hence, it can be written in 𝒑/𝒒 form, where q ≠ 0.

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