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!

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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