Eric Nicholas K's answer to chloe's Junior College 1 H2 Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Q2b
The second part of this question is done with the fact that one sequence shows a string of cubes of odd numbers and the other shows a string of cubes of even numbers.
An alternative method is to expand (2r - 1)^3 out and then using the results for the summation of n^2 and n^3 as given in both parts.
If you need me to write up this alternative method, let me know.
The second part of this question is done with the fact that one sequence shows a string of cubes of odd numbers and the other shows a string of cubes of even numbers.
An alternative method is to expand (2r - 1)^3 out and then using the results for the summation of n^2 and n^3 as given in both parts.
If you need me to write up this alternative method, let me know.
Date Posted:
2 years ago
360 Tutoring Program