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Mathematics, 25.06.2019 06:30 Seaisnowblue

Prove that for any natural n: athe number 7^(n+4) −7^n is divisible by 30.bthe number 3^(n + 2) −2^(n +2) +3^n −2^n is divisible by 10.

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Prove that for any natural n: athe number 7^(n+4) −7^n is divisible by 30.bthe number 3^(n + 2) −2^(...

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