Question

Find the sum of odd integers from 1 to 2001.

Answer 1

here's your answer hope it helped u

Answer 2

Answer:

Heya....

Hereis your answer...

The ap is 1, 3, 5,........... 1999, 2001

.

Here a=1

D=3-1=2

An=2001

Since An= 2001

A+(n-1)d =2001

1 + (n-1)2 = 2001

n-1 = 1000

N = 1001

The sum of the ap is

Sn = n/2(a +an)

=1001/2 (1 + 2001)

=1001/2 ×2002

=1001 × 1001

=1002001

Hope it helps you

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