Question

cat face suma nr de la 1 la 99?

Answer 1

1+2+3+......+99
S=99*100:2
S=99*50=4950
S=4950

Sper ca te-am ajutat !
Vacanta placuta ! :D
Succes in continuare ! <3

Answer 2

Suma Gauss

Formulă :

n(n+1):2

Rezolvare :

$S_{99}$ = 1 + 2 + 3 + ..... + 99 = 99( 99 + 1 ) : 2

$S_{99}$ = 99 × 100 : 2

$S_{99}$ = 9.900 : 2

$S_{99}$ = 4.950