Quantity A
The range of the first n positive cubed integers
Quantity B
n^3
Can someone please share the solution for the above sum?
Thank you!
The range is last - first
The last cubed number = n^3
The first cubed number = 1^3 = 1
A = n^3 -1
B = n^3
Because n is positive, quantity B would be greater
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Thank you for this!
Thanks for your answer vidishas99. I was a little thrown off by this because if n=1, then your range is 0. Therefore, I said the answer could not be determined. You should need another piece of information stating that n>1. Is it implied that n cannot be 1? If so, what is that rule.
Well even when n=1, the answer works, because
quantity A = 1^3 - 1^3 = 0
quantity B = 1^3 = 1
1 > 0
B > A
Ans. B
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