Question

what is the sum of first 100 normal number?​

Answer 1

Answer:

we getS100=1002[2×1+(100−1)×1]S100=50[2+99]S100=50×101S100=5050∴ The sum of first 100 natural numbers is 5050.

Answer 2

Answer:

5050

Step-by-step explanation:

Let a be the first term and d be a common difference.

First-term a = 1.

Common difference d = 1

Last term l = 100.

We know that sum of n terms of an ap sn = n/2(a+l)

s100 = 100/2(1 + 100)

= 50(101)

= 5050.