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Earn +20 ptsQ: What is the answer to the sum of the first 100 triangular numbers?
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How Are Triangular And Cubed Numbers Linked?
The sum of the first n cubed numbers is the square of the nth triangular number.
how to calculate the sum of first 100 numbers?
The answer is the 100th triangular number so you can use the formula (n(n+1))/2.n = 100 so the sum is (100 x 101)/2 = 10100/2 = 5,050.
What is the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum?
The sum of the squares of the first 100 natural numbers [1..100] is 338350, while the sum of the first 100 natural numbers squared is 25502500.
What is the sum of the first four triangular numbers?
1+3+6+10 =20
How do you work out the sum of the first 100 odd numbers?
This is very easy. Simply square the number: 100 squared (100 x 100) = 10,000. So, the sum of the first 100 odd numbers is 10,000.
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