What the sigma | Revision Server | Page 1

eager seal Jul 1, 2024, 3:27 PM

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How would I even begin this question?
I’ve tried finding a sequence and rationalising but idk how I would add them all up.
(The question is the one beginning 1/sqrt(2) + 1 btw)

last niche Jul 1, 2024, 3:33 PM

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Methods of differences

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Sum should be 9

eager seal Jul 1, 2024, 7:15 PM

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last niche Methods of differences

Today was my sixth form induction day, I have no idea what that is hahaha

glossy stirrup Jul 1, 2024, 8:03 PM

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,rotate

torpid swiftBOT Jul 1, 2024, 8:03 PM

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glossy stirrup Jul 1, 2024, 8:14 PM

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eager seal How would I even begin this question? I’ve tried finding a sequence and rational...

yeh

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basically just rationalise the first few and you'll see a pattern

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most terms will cancel

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languid venture Jul 3, 2024, 12:55 PM

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@eager seal all good?

eager seal Jul 4, 2024, 12:48 AM

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Ty everyone for the help :). I didn’t realise they all cancelled so I learned what summarisation was to solve it hahah (unnecessary ik but the more you learn ig)

#What the sigma