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Mathematics, 06.12.2019 09:31 josecano2
Prove that for any natural value of n the value of the expression: (n+1)^2–(n–1)^2 is divisible by 4
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Prove that for any natural value of n the value of the expression: (n+1)^2–(n–1)^2 is divisible by 4...
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