☆CONTENT QUALITY REQUIRED☆
Show that any number in the form 7n or 7n+1 is a perfect cube or a perfect square .
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use Euclid formula (a=bq+r) (0=r<b)
put b= 7 and r=0,1,2,3,4,5,6 in formula
7q+0=7q
7q+1
7q+2
put b= 7 and r=0,1,2,3,4,5,6 in formula
7q+0=7q
7q+1
7q+2
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