Question

8. Calculează: c) 2 +4 +6+ ... + 100; d) 1+3+5+...+99.​

Answer 1

c) 2(1+2+3+…+50) = 2(50•51/2) = 50•51 = 2550

d) 99-1+1 =99(nr termeni)
(99-1)•99/2 = 4851



Sper ca e bine!:)))