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differentiating by first principle. (1 Viewer)

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khorne

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It's very rarely in the exams, but you should learn it as part of the geometric definition of the derivative...
 

ozziguy

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is that where you use some sort of weird formula, something to do with a 'h'? My teacher said it could potentially be in there but its a low chance, I dont think its been in there for the last few years? So maybe this year is a chance.
 

ninetypercent

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yes, there is a chance that it will be tested. it's not hard to learn anway, just basic functions and limits.
 

jet

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They give you the formula. But you should know it anyway.
 

- Alex -

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Differentiating from first principle: 3-4 steps

Differentiating from short method:1-2 steps.

i personally think the first principle is just time wasting.
 

Studentleader

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There is an alogorithm to doing it (set of ~6 cases in which you do a particular action) which involve multiplying by the denominator/denominator etc but I can't recall them - try looking them up
 

Trebla

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Epic lol, today's Extension 1 paper Q7a)i) asked you to differentiate x by first principles!!!
 

smelnizzle

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Epic lol, today's Extension 1 paper Q7a)i) asked you to differentiate x by first principles!!!
LOL +1
learn it.
besides, it's easy to understand and check.. so it wont take you too long. :)
 

benhaddad

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there is almost a 2-3 mark question on it, spend the 10 minutes it takes to learn it, its worth it
 

duckcowhybrid

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It's best if you learn it. You may never use it, but it's good to know the basics from where you do all differentiating.
 

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