Find the sum of odd integers …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Khushboo Gupta 5 years, 6 months ago
- 1 answers
Related Questions
Posted by Ananya Singh 1 year, 3 months ago
- 0 answers
Posted by Sanjay Kumar 1 year, 2 months ago
- 0 answers
Posted by Charu Baid 1 year, 2 months ago
- 0 answers
Posted by Xxxxxx Xx 1 year, 2 months ago
- 0 answers
Posted by Sanjna Gupta 1 year, 2 months ago
- 4 answers
Posted by Sneha Pandey 1 year, 3 months ago
- 0 answers
Posted by Karan Kumar Mohanta 1 year, 2 months ago
- 0 answers
Posted by Xxxxxx Xx 1 year, 2 months ago
- 3 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Yogita Ingle 5 years, 6 months ago
The odd integers from 1 to 2001 are 1, 3, 5, …1999, 2001.
This sequence forms an A.P.
Here, first term, a = 1 Common difference, d = 2
Here, a+(n−1)d = 2001
=> 1+(n−1)(2) = 2001
=> 2n−2 = 2000
=> n = 1001
Sn = n/2[2a+(n−1)d]
∴ Sn = 1001/2[2×1+(1001−1)×2]
=1001/2[2+1000×2]
=1001/2×2002 =
1001×1001 =1002001
Hence, the sum of odd numbers from 1 to 2001 is 1002001.
0Thank You