0
S(1) = 1 = 12
S(2) = 1 + 3 = 4 = 22
S(3) = 4 + 5 = 9 = 32
S(4) = 9 + 7 = 16 = 42
etc
So S(2000) = 20002 = 4,000,000
I owe the insight to this answer to another contributor who, because of Wiki rules, cannot be named. How about *cienceguy22?
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∙ 12y ago
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What is the sum of the first 2000 consecutive odd numbers?
Answer is 4000000: The sum of the first N odd numbers is N^2. Look at 1,3,5 for example. There are 3 numbers and the sum is 9 which is 3^2. Add 7 and the sum is 16 which is 4^2. So the of the first 2000 consecutive odd numbers is 2000^2 Note 2000 is 2(10^3). When we square that it is 4x10^6=4000000
What is the sum of the first 1000 odd numbers?
The sum of the first 1,000 odd numbers is 1,000,000.
What is the sum of the first 50 odd numbers?
The sum of the first 50 odd numbers is 2,500.
What is the sum of the first 600 odd numbers?
The sum of the first 600 odd numbers is 360,000.
What is the sum of the first 9 odd numbers?
The sum of the first nine odd numbers is 81.
What is the sum of the first 2000 consecutive odd numbers?
Answer is 4000000: The sum of the first N odd numbers is N^2. Look at 1,3,5 for example. There are 3 numbers and the sum is 9 which is 3^2. Add 7 and the sum is 16 which is 4^2. So the of the first 2000 consecutive odd numbers is 2000^2 Note 2000 is 2(10^3). When we square that it is 4x10^6=4000000
What is the sum of the first fifteen odd numbers?
The sum of the first 15 odd numbers is 225.
Sum of the first 100 odd numbers?
The sum of the first 100 odd numbers is 10,000.
What is the sum of first 300 odd numbers?
The sum of the first 300 odd numbers is 90,000
What is the sum of the first 40 odd numbers?
The sum of the first 40 odd numbers is 1,600.
What is the sum of the first 600 odd numbers?
The sum of the first 600 odd numbers is 360,000.
What is the sum of the first 8000 odd numbers?
The sum of the first 8,000 odd numbers 64,000,000.
What is the sum of the first 1000 odd numbers?
The sum of the first 1,000 odd numbers is 1,000,000.
What is the sum of the first 50 odd numbers?
The sum of the first 50 odd numbers is 2,500.
What is the sum of the first 9 odd numbers?
The sum of the first nine odd numbers is 81.
What is the sum of the first 13 odd numbers?
The sum of the first 13 odd numbers is 169.
What is the sum of the first 153 odd numbers?
The sum of the first 153 odd numbers is 23,409.
