Question

The difference of period and periodicity of o.99bar

Answer 1

Explanation:

so 9/10+9/100+9/1000+9/10000+…

take 9 as common for all

9*(1/10+1/100+1/1000+..)…geometric progression

9*( (1/10) / (1 - ( 1/10 )) =9×1/9 = 9/9

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