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junior college 2 | H2 Maths
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junior college 2 chevron_right H2 Maths chevron_right Singapore

May I know how to do? Thank you.

Date Posted: 5 months ago
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Eric Nicholas K
Eric Nicholas K's answer
2351 answers (Tutor Details)
I highly doubt that a question at the JC level will appear like that. The formulas for the expansions should be given as part of the question unless there is an alternative method for it. I don't recall any special expansion technique for the summation of r (r + 1) though.