Question

Ajutoooooooooooor
Cum fac 1×2×3×4×...×50

Answer 1

E suma Gauss: 1+2+3+...+n= n(n+1)/2 N e ultimul numar In cazul tau 50 e n deci 50(50+1)/2= 50x51:2 si faci calculul

Answer 2

S=[(T1+Tultim)•nr termeni]:2
S=[(1+50)•50]:2
S=(51•50):2
S=2550:2
S=1275