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[" 8.For any positive integer "n" ,prove...

[" 8.For any positive integer "n" ,prove that "n^(3)-n" is divisible by "0" ."],[" 9.Prove that if "x" and "y" are both odd positive integers then "x^(2)+y^(2)" is even "],[" but not divisible by "4" ."],[" 10.Use Euclid's algorithm to find HCF of "1190" and "1445" .Express the HCF "]

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