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What is the sum of this series: 1^3 +2^3 + 3^3 + 4^3 + 5^3............100^3?. Thanks for any help.

 Dec 23, 2016
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There is a well-known shortcut to this, and it is:

The sum of consecutive cubes =The sum of the consecutive numbers squared!. That is:

1^3 +2^3 + 3^3 + 4^3 + 5^3............100^3 =[1+2+3+4+5.......+100]^2

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, =[(100 x 101/2)]^2 =5050^2 =25,502,500.

 Dec 23, 2016

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