Question

ajutor ca nu mai pot​

Answer 1

Răspuns:

a. 2/3 > n/3

2×3 > 3n

n < 6:3

n < 2

_______

b. 5/4 < 5/n

5n < 4×5

n < 20:5

n < 4

Answer 2

Explicație pas cu pas:

a)

$\frac{2}{3} > \frac{n}{3} \iff n < 2 \\ n \in \mathbb{{N}^{\ast}} \implies n = 1$

b)

$\frac{5}{4} < \frac{5}{n} \iff \frac{4}{5} > \frac{n}{5} \\ \implies n < 4 \\ n \in \mathbb{{N}^{\ast}} \implies n \in \Big\{ 1; 2; 3 \Big\}$