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Edexcel C4 on Monday

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Reply 60
Avatar for Emily333
Emily333
lil'p
im hoping for a kind vectors questions

rest im ok with

Oh same here - i got 91 in mechanics in January but i cannot fathom vectors in c4 - something about having to cope with i, j and k that i cannot do :frown:
Reply 61
Avatar for Hobnob123
Hobnob123
I can't do algebraic like the following

(x^3-x^2-x-3) over (x^2-x)

Anyone know where a site details a question similar to this? There are no examples in the Edexcel C4 book :frown:
grippips
Hey,
Check out http://priorexams.com/

Think the Mark Schemes are on there.


YOU LEDGEND! Thanks so much! Need 60% in C4! Didnt have any mark schemes n had papers missing! My C3 didnt go as well as i hoped either! LEDGENNNNDD!!!!:biggrin:
Reply 63
Avatar for fblade
fblade
14
Hobnob123
I can't do algebraic like the following

(x^3-x^2-x-3) over (x^2-x)

Anyone know where a site details a question similar to this? There are no examples in the Edexcel C4 book :frown:

What are you trying to do with it? Integrate?
Hobnob123
I can't do algebraic like the following

(x^3-x^2-x-3) over (x^2-x)

Anyone know where a site details a question similar to this? There are no examples in the Edexcel C4 book :frown:


Thats long division or quotient remainder theorem. I havent looked at C4 in over a year but i am pretty sure there are good examples of that in the book.
Reply 65
Avatar for fblade
fblade
14
Oh sorry I didnt read it properly lol

Yeah thats long division.
Reply 66
Avatar for jazzie_jo
jazzie_jo
I think the vector Equation of a straight line on wikinotes is wrong, it's missing a '+', but I'm not good enough with html to correct it
Reply 67
Avatar for sianie100
sianie100
Anyone able to help me with this... i'm having a real problem with this, i can do the chain rule and product rule but cant seem to make this work

find the value of dy/dx at point (1,1) where 4xy^2 + 6x^2y^-1 = 10

thaaanks x
Reply 68
Avatar for ~NC~
~NC~
11
First diferentiate implicitly:
to give:

working


simplify to give:

working


sub in (1,1)

working


Hope that helps...
If it is right, next time post your working, and we can help you from there!
Reply 69
Avatar for sianie100
sianie100
thanks very much, i'd hit one of those things where you look and look and try things and just dont get anywhere.
now i see where i went wrong =]
Hasn't 12 hours passed? Why is no one talking bout this? It was a pretty hard paper. Eugh.
Reply 71
Avatar for Loz2402
Loz2402
PootieTang22
Hasn't 12 hours passed? Why is no one talking bout this? It was a pretty hard paper. Eugh.


its on a different thread. havent got the link here, but its easy to find in this forum. :smile:

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