Question

what is the sum of the numbers from 1 to 2018?​

Answer 1

1+2+3+........+ 2018

this is an arithmetic sequence with

a= 1

d=1

n=2018

sum of n terms =(n/2)[2a+(n-1)d]

sum of 2018 terms=

(2018/2)[2+(2017×1)]

= 1009×2019

=2037171

Answer 2

Answer:

i hope this is right and helpful for u.