Question

Aflati nr. natural n Ajutati-ma va rog!! :(

Answer 1

Explicație pas cu pas:

d) 7^n+1 : 7⁴ = 49^ 2³

7^n+1 : 7⁴ = 49⁸

7^n+1-4 =(7²)⁸

7^n+1-4 = 7¹⁶

n+1-4=16 => n+1 =16+4 => n=20

=> n=20-1

n=19

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e) 10^2n+1 : 5^2n+1 = 8⁹

2^2n+1 =( 2³)⁹

2^2n+1 = 2²⁷ => 2n+1 =27 => 2n=27-1 ; 2n=26

2n=26 => n=26:2

n=13

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sper ca te am ajutat:))