Mathematics, 25.06.2019 06:30, Seaisnowblue
Prove that for any natural n: athe number 7^(n+4) β7^n is divisible by 30.bthe number 3^(n + 2) β2^(n +2) +3^n β2^n is divisible by 10.
Answers: 1
; then 
, which is divisible by 30. We have
, it follows that 
for all 
.
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Prove that for any natural n: athe number 7^(n+4) β7^n is divisible by 30.bthe number 3^(n + 2) β2^(...
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