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Classify the following numbers as rational or irrational: (iv) 7.478478....

9.  Classify the following numbers as rational or irrational :

(iv)  7.478478....

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We can rewrite  7.478478.... as 

\Rightarrow 7.478478.... = 7.\overline{478}
Now,  as the decimal expansion of this number is non-terminating recurring. Therefore, it is a rational number.

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