Find the Sum of odd integers from 1 to 2001.
Answers
Answered by
4
its answer is 1002001
firstly we will find (n) from the A.P
l=a+(n-1)d
and then putting the value of (n) in the formula
s(n)=n/2{2a+(n-1)d}
firstly we will find (n) from the A.P
l=a+(n-1)d
and then putting the value of (n) in the formula
s(n)=n/2{2a+(n-1)d}
Answered by
1
Answer:
1,002,001
Step-by-step explanation:
Solution:
To find su of all odd integers from 1 to 2001
we can convert it into an A.P.
thus it can be represted as
1,3,5,7,9,...,2001
To find the sum: calculate n first
a = 1
d= 2
2001 = a+(n-1)d
2001 = 1+(n-1)2
2000=(n-1)2
n-1 =1000
n=1001
Sn=
=
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