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Unit Digit

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Unit Digit [#permalink] New post 24 Dec 2017, 00:27
Q. If the units digit of \((x-1)^2\) is 5 and the units digit of \((x+1)^2\) is 9, then determine the units digit of \(X^2\).
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Re: Quants-Unit Digit [#permalink] New post 24 Dec 2017, 07:12
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Re: Quants-Unit Digit   [#permalink] 24 Dec 2017, 07:12
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