Question

sum of 1st 100 natural numbers​

Answer 1

Answer:

here is the solution hope u like

Answer 2

Answer:

5050

Step-by-step explanation:

1, 2, 3, 4.......100

a = 1, d = 1, an = 100

Here, we know that there r 100 no.s

But I'll anyways do this step:

an = a + (n-1)d

100 = 1 + (n-1)1

100 = 1 + n - 1

⇒ n = 100

Sum =  n

          ---- × (a + l)                              (l = an)

           2

       = 100

          ------  × (1 + 100)

            2

       = 50 × 101

∴ Sum = 5050