Question

s1=30+31+......+104
s2=101+102+....+200
s3=151+152+....+350
s4=203+204+....+450
s5=301+302+...+400 prin metoda gaus​

Answer 1

Suma lui Gauss:

n=(u-p):r+1

S=(u+p)×n:2

n=(104-30):1+1

n=75

s1=(104+30)×75:2

s1=5025

_____________

n=(200-101):1+1

n=100

s2=(200+101)×100:2

s2=30100:2

s2=15050

_____________

n=(350-151):1+1

n=200

s3=(350+151)×200:2

s3=501×100

s3=50100

_____________

n=(450-203):1+1

n=248

s4=(450+203)×248:2

s4=80972

______________

n=(400-301):1+1

n=100

s5=(400+301)×100:2

s5=35050