Use a proof by contradiction to show that for all integers n, n² – 2 is notdivisible by 4.

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Use a proof by contradiction to show that for all integers n, n² – 2 is not
divisible by 4.

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Step 1

Introduction:

Suppose the given function $n^{2} - 2$ is divisible by 4 then we can check whether it is divisible by for odd number or odd number or none of the two.

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Use a proof by contradiction to show that for all integers n, n²- 2 is not divisible by 4.