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Question

Suppose m and n are distinct integers. Can 3m×2n2m×3n be an integer? Give reasons.

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Solution

Given that: 3m×2n2m×3n
( m and n are distinct integers)
=3(mn)2(mn) ........Using [am=1am]

=(32)mn
this cannot be integer as 32=1.5 so (1.5)(mn) whether m>n or n>m in all cases result will be decimal. So 3m×2n2m×3n is not an integer.

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