Question

1+2+3+.........170000000=​

Answer 1

Answer:

Step-by-step explanation:

170000000=1+(n-1)1

169,999,999/1=n-1

n=170000000

Sₙ=$\frac{n}{2}$(a+l)

  =$\frac{170000000}{2}$(1+170000000)

  =85,000,000x170000001

  $=14,450,000,085$ × $10^{6}$

hope its correct