Find the sum of odd integers from 1 to 2001.

Answer

Related Courses

Precalculus

NCERT Class 11 - Math

Chapter 9

Sequences and Series

Section 2

Sequences

Discussion

You must be signed in to discuss.

Top Precalculus Educators

Watch More Solved Questions in Chapter 9

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Problem 12

Problem 13

Problem 14

Problem 15

Problem 16

Problem 17

Problem 18

Video Transcript

We have our number one In which we need to find the sum of ardent teachers from one To 2001. So It starts with one three 57 and last time must be equal to 2001. Okay, so we know that formula for some is uh huh. First of all it is a certain that This 3 -1 is two, 5 -3 is 2. -5. Is to silence of the differences to differences too. So this is an ap that is a thematic location or automatic sequence. If some is S N S N equal to, This is since this is the last term. So and by two A plus L. And by the way plus L. Where L is the last term. So this is the value of L. First term is A. And we have to find the number of terms that is in so we have L equal to a place and -1 into diva. It is the common difference. That is this. So 2001 equal to, it is one plus We need to find and -1. And today is to Which means 2001 -1. That is 2000 will be equal to and -1 into two. Which means an -1 will be equal to 2000 divided by two. That is 1000. So an equal to 1001. Now let us play in this value in this formula. So some will be S 1001 equal to 1001 x two mm. Bless L. So 2000 one. Okay. 2001. So this is AH 1001 by two In two. This is 2002. So 2002 uh 1001 So this is simply 1001 called square, which means 100 and Old Square, that is 10 0: 001. So required some Is equal to 1002001. So they should be the answer. Okay, thank you.

We have video lessons for 83.41% of the questions in this textbook