Question

2 supra 5n - 13 (fractie supraunitara)

Answer 1

6.1 este n asa cred deoarece 13:2 si cit da e n

Answer 2

$\frac{2}{5n-13}$ fractie supraunitara <===> 2 > 5n-13
2>5n-13
2+13>5n
15>5n
n<$\frac{15}{5}$
n<3
dar in acelasi timp 5n-13>0
====> n∈($\frac{15}{13}$,3)