Find the sum of odd integers …

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Find the sum of odd integers from 1 to 2001.

Posted by Sanif Warsi 8 years ago

CBSE > Class 11 > Mathematics

1 answers

Prakash Sahu 8 years ago

a= 1 d= 2(difference between two consecutive term) Tn= 2001 1+(n-1)2= 2001 2n= 2002 n= 1001 Sum= n/2(2a + (n-1) d 1001/2(2+2000) 1001*1001 = 1001^2

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