Question

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

Answer 1

Salut!

Răspuns: $\frac{1}{19}$ ✅

✏ $\frac{1}{ \not{2} } \times \frac{ \not{2}}{ \not{3} } \times \frac{ \not{3} }{ \not{4} } \times ... \times \frac{ \not{18} }{ {19} } = \red{ \frac{1}{19} }$ ✔