Question

Write the sum using summation notation, assuming the suggested pattern continues.

729 + 1000 + 1331 + 1728 + ... + n3

Answer 1

is it n^3

Answer 2

It can be written as:

\[9^3 + 10^3 + 11^3 ............. n^3\]

In Sum Notation, as it is starting from 9 and going to n, so:

\[\huge \color{green}{\sum_{k = 9}^{k = n}k^3}\]

Answer 3

ohh ok thnak you