geometric series formula Watch

vanessa_tram
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Is there any tips to learn geometric series formulas ? I always forget them and keep looking up online. when exams come, I tried to learn them at the time then forgot them again. also is there any good website which provides fully useful ones.
thank you
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Zacken
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(Original post by vanessa_tram)
Is there any tips to learn geometric series formulas ? I always forget them and keep looking up online. when exams come, I tried to learn them at the time then forgot them again. also is there any good website which provides fully useful ones.
thank you
Why don't you derive them? That should be a good way of embedding it in your mind?
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vanessa_tram
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(Original post by Zacken)
Why don't you derive them? That should be a good way of embedding it in your mind?
when it comes to sum from 0 or 1 to infinity i'm always stuck. i never like "infinity" to be honest. lol
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Zacken
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(Original post by vanessa_tram)
when it comes to sum from 0 or 1 to infinity i'm always stuck. i never like "infinity" to be honest. lol
Do you know the one to n terms? Just let n \to \infty.
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vanessa_tram
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(Original post by Zacken)
Do you know the one to n terms? Just let n \to \infty.
oh, i see what u mean, ok, i will try that. thank you
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HapaxOromenon2
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(Original post by vanessa_tram)
Is there any tips to learn geometric series formulas ? I always forget them and keep looking up online. when exams come, I tried to learn them at the time then forgot them again. also is there any good website which provides fully useful ones.
thank you
(Original post by Zacken)
Why don't you derive them? That should be a good way of embedding it in your mind?
They're given in the formula booklet which you get given a copy of in each exam! (Though of course it is good to learn them by heart as it saves time...)
Edexcel Formula Booklet: https://qualifications.pearson.com/c...cal-Tables.pdf
AQA Formula Booklet: http://filestore.aqa.org.uk/subjects/FORMULAE.PDF
OCR MEI Formula Booklet: http://www.mei.org.uk/files/pdf/formula_book_mf2.pdf
OCR Non-MEI Formula Booklet: http://www.ocr.org.uk/Images/70824-d...cal-tables.pdf
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Zacken
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(Original post by HapaxOromenon2)
They're given in the formula booklet which you get given a copy of in each exam! (Though of course it is good to learn them by heart as it saves time...)
Edexcel Formula Booklet: https://qualifications.pearson.com/c...cal-Tables.pdf
AQA Formula Booklet: http://filestore.aqa.org.uk/subjects/FORMULAE.PDF
OCR MEI Formula Booklet: http://www.mei.org.uk/files/pdf/formula_book_mf2.pdf
OCR Non-MEI Formula Booklet: http://www.ocr.org.uk/Images/70824-d...cal-tables.pdf
I think she's a uni student.
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vanessa_tram
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(Original post by HapaxOromenon2)
They're given in the formula booklet which you get given a copy of in each exam! (Though of course it is good to learn them by heart as it saves time...)
Edexcel Formula Booklet: https://qualifications.pearson.com/c...cal-Tables.pdf
AQA Formula Booklet: http://filestore.aqa.org.uk/subjects/FORMULAE.PDF
OCR MEI Formula Booklet: http://www.mei.org.uk/files/pdf/formula_book_mf2.pdf
OCR Non-MEI Formula Booklet: http://www.ocr.org.uk/Images/70824-d...cal-tables.pdf
thank you but im doing undergraduate. my uni dont give any formula booklet for this
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HapaxOromenon2
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(Original post by vanessa_tram)
thank you but im doing undergraduate. my uni dont give any formula booklet for this
If you're an undergraduate then how the hell don't you know these basic formulae already? I guess you must be studying at some random "university" with no credibility.
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vanessa_tram
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(Original post by HapaxOromenon2)
If you're an undergraduate then how the hell don't you know these basic formulae already? I guess you must be studying at some random "university" with no credibility.
Excuse me? I may not know everything but I ask nicely and I learn. But u, even a basic thing u don't even know "how to be polite"
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Zacken
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(Original post by vanessa_tram)
Excuse me? I may not know everything but I ask nicely and I learn. But u, even a basic thing u don't even know "how to be polite"
He's a troll, please ignore him.
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morgan8002
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(Original post by vanessa_tram)
Is there any tips to learn geometric series formulas ? I always forget them and keep looking up online. when exams come, I tried to learn them at the time then forgot them again. also is there any good website which provides fully useful ones.
thank you
Maybe remember the factorisation 1-x^n = (1+x+x^2+...+x^{n-1})(1-x).
Or just derive it fully.
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HapaxOromenon2
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(Original post by Zacken)
He's a troll, please ignore him.
Cease and desist from defaming me immediately. I am simply stating that someone who cannot remember basic A-Level formulae ought not to be doing a mathematics or mathematics-related university course. You can disagree with that view if you wish, but do not dare to insinuate that I act with anything other than full seriousness.
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