Mathematical Induction - Sum of series ∑r³ | ExamSolutions

Here you are shown how to prove by mathematical induction the sum of the series for r cubed ∑r³
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[@thomasww04]

Wow thanks! Just about to do an AS mock with this in it and I didn’t understand it until now

[@johnmifsud6814]

Well done - the factorisation last steps are not normally explained in textbooks, hence students are at a loss at that point.

[@ranjithamarakoon8842]

Very helpful to me thank you for FREE

[@jamesbegg8032]

you didnt do anything about the (K+1)3 at the end??

[@joejoeOnlyOneJoe]

+James Begg it got factored

[@darynbrown7001]

May you or someone else link a video explaining how factoring like this works?

[@Haru-yz5ke]

Is it the same as n²(n+1)²/4

[@majohnson4317]

Nice job, but I can't find a video about double sigma ( I'm French so I don't know, if it's the good term)

[@ElizabethSibanda-v6h]

Thank you

[@kudakwashetakawira4552]

Great job 👍

[@musazmak6817]

How can it be solved for r power 4

[@fireyonghan]

thanks!

[@hypehuey6747]

Thanks a lot

[@ExamSolutions_Maths]

That's okay - best wishes

[@mansisalhotra425]

Its nice