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Compute sum of cubes for given range

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Problem Statement


Compute the sum of cubes for a given range a through b.

Write a method called sum_of_cubes to accomplish this task

Example Given range 1 to 3 the method should return 36

[reset] Need a hint? See the Solution

Hint

You might want to use Enumerable#inject and Ruby range construct for this problem, more information about them can be found here and here

Output Window

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