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If A={n:(n^3+5n^2+2)/n is an integer and...

If `A={n:(n^3+5n^2+2)/n` is an integer and 'n' itself is an integer , then the number of elements in the set A is :

Text Solution

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`A={n:(n^3+5n^2+2)/n:}`
Where n is an integer
`(n^3+5n^2+2)/n=n^2+5n+2/n`
`n=-2,-1,1,2`
there are total 4 numbers.
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