Question

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Answer 1

Explicație pas cu pas:

24.

a) 6, 11, 16

$\frac{6 - 1}{5} = \frac{5}{5} = 1 \\ \frac{11 - 1}{5} = \frac{10}{5} = 2 \\ \frac{16 - 1}{5} = \frac{15}{5} = 3$

b)

$\frac{x - 1}{5} \ \ \vdots \ \ 5 \\\frac{x - 1}{5} = k \iff x - 1 = 5k \\ \implies x = 5k + 1 , unde \ \ k \in \mathbb{{N}^{\ast} }$