(1supra2)×(2supra3)×(3supra4)×...×(18supra19
)​


Răspuns :

Salut!

Răspuns: [tex] \frac{1}{19} [/tex] ✅

✏ [tex] \frac{1}{ \not{2} } \times \frac{ \not{2}}{ \not{3} } \times \frac{ \not{3} }{ \not{4} } \times ... \times \frac{ \not{18} }{ {19} } = \red{ \frac{1}{19} } [/tex] ✔