Question

Evaluate: 1° +2° + 3° +____
+ 1000​

Answer 1

Step-by-step explanation:

a = 1

an = 1000

d = 2 -1 = 1

n = 1000

Sn = n/2 ( a + an)

= 1000/2 (1 + 1000) = 500× 1001 = 500500

Hope this helps you out.

please mark it as the branlisist