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junior college 1 | H2 Maths
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Paige Tan
Paige Tan

junior college 1 chevron_right H2 Maths chevron_right Singapore

i do not have the question paper with me but it is to put that series into sigma notation including the term r^2 as the question gave r^2 value to sub in

Date Posted: 4 years ago
Views: 491
Salman
Salman
4 years ago
Its the sum r(n + 2r) where r is the termth number from 1 all the way up to n.

We can expand the expression inside the sum which yields us with rn +2r². Thanks for asking! Hope this helps.
Paige Tan
Paige Tan
4 years ago
thank you! do you know if that means that the answer will be in terms of n?

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
Good morning Paige! This is an idea for this question.
Eric Nicholas K
Eric Nicholas K
4 years ago
That expression containing a term in r^2 is nr + 2 r^2.
Paige Tan
Paige Tan
4 years ago
thank you! i will make use of that and give it a try :)
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Salman
Salman's answer
3 answers (A Helpful Person)
Sorry for my tardy handwriting.
Paige Tan
Paige Tan
4 years ago
thank you!! i will make use of this to answer the question now!