Question

metoda gauss 80+82+84+86.....+264=

Answer 1

$S=80+82+84+...+264$

$S=264+262+260+...+80$

$2S=344+344+...+344$
   
     $|---93 \ termeni--|$

$2S=93*344$

$S=\frac{93*344}{2}=15996$



$Nr \ de \ termeni \ l-am \ aflat \ astfel :$

$N=\frac{ultimul \ termen-primul \ termen}{din \ cat \ in \ cat \ se \ numara}+1$




           

Answer 2

Nr termeni: (264-80):2+1
=184:2+1
=92+1
=93
S=(264+80)·93:2
S=344·94:2
S=32336:2
S=16168

E rezolvat in metoda suma Gauss

Sper ca te-am ajutat :-*