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If aN={an:nN}  and  bNcN=dN where a,b,cN and, b,c are coprime, then

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By Expert Faculty of Sri Chaitanya
a
b=cd
b
c=bd
c
d= bc
d
None of these
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detailed solution

Correct option is C

Given that,aN={an:n∈N}bN={bn:n∈N} and cN={cn:n∈N}Also given,bN∩cN=dNbc∈bN∩cN or bc∈dNbc=d [∵b and c are coprime ][ coprime numbers are those numbers, whose common factor is 1. e.g., (i) 3 and 5 (ii) 5 and 9 etc.]


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