Turn on thread page Beta

The Official Edexcel P2 Revision Thread! (20/06/05 AM) watch

    Offline

    0
    ReputationRep:
    (Original post by tiger_j000)
    Whats the difference with c2 and p2, is it two sepearte papers
    C2 - New Spec

    P2 - Old Spec

    Most of the P2 stuff is actually on C3 not C2.
    Offline

    0
    ReputationRep:
    http://www.edexcel.org.uk/VirtualContent/25605.pdf


    all ya need
    Offline

    14
    ReputationRep:
    Ok... i will do

    And P2 does exist (LOOK AT THE TITLE OF THE THREAD!) it's only that you in the lower six do an easier course where you have effectively get P1, P2 and P3 in 4 modules and have to do one less applied module! Though i quite like M2 though so i dont really know if that's a better combination.
    • Thread Starter
    Offline

    1
    ReputationRep:
    Just done the test in the back of the textbook and found a few problems.

    6) The diagram shows a sketch of the curve with equation y = 2x - 10lnx - 3 which crosses the x-axis at A and B. At the point C y takes its minimum value.

    b) Given that the x-coordinate of B lies in the interval [N, N+1] where N is an integer, find the value of N.
    Offline

    2
    ReputationRep:
    (Original post by !Laxy!)
    C2 - New Spec

    P2 - Old Spec

    Most of the P2 stuff is actually on C3 not C2.
    Agreed. As really: C1 + C2 = P1

    C3 = P2

    and C4 = P3
    Offline

    0
    ReputationRep:
    Woo, P2! In't it great?
    Offline

    2
    ReputationRep:
    Nice thread! I got it next week too, then S2 two days later.

    Chris If you still need the mark scheme for 2005, PM me your email!
    Offline

    2
    ReputationRep:
    (Original post by Cartouche)
    Woo, P2! In't it great?
    not really =|
    • Thread Starter
    Offline

    1
    ReputationRep:
    Found a few small questions I'm not sure about.

    P2 Mock Paper

    Find, giving your answer to two decimal places, the value of z for which:

    cosz + sinz = 1/3, -pi < z < pi

    P2 June 2001

    Can't do the bit in bold.

    2) The root of the equation f(x) = 0, where

    f(x) = x + ln2x - 4

    is estimated using the interative formula xn+1 = 4 - ln2x, with x0 = 2.4,

    a) Showing your values of x1, 2, x3..., obtain the value, to 3 decimal places, of the root.

    b) By considering the change of sign of f(x) in a suitable interval, justify the accuracy of your answer to part (a).
    Offline

    15
    ReputationRep:
    (Original post by Chris87)
    Found a few small questions I'm not sure about.

    P2 Mock Paper

    Find, giving your answer to two decimal places, the value of z for which:

    cosz + sinz = 1/3, -pi < z < pi
    Use

    A cos x + B sin x = R cos(x - @) where

    [email protected] = B/A and R^2 = A^2 + B^2
    Offline

    15
    ReputationRep:
    (Original post by Chris87)
    a) Showing your values of x1, 2, x3..., obtain the value, to 3 decimal places, of the root.

    b) By considering the change of sign of f(x) in a suitable interval, justify the accuracy of your answer to part (a).
    Say you found that the root was

    0.3672873...

    Then to 3dp you think the answer is 0.367

    Well work out the function at 0.3675 and 0.3665 and if there is a sign change between the two then there is definitely a root there. And any such number between those values is 0.367 to 3 dp
    Offline

    15
    ReputationRep:
    (Original post by Chris87)
    Found a few small questions I'm not sure about.
    P2 Mock Paper
    Find, giving your answer to two decimal places, the value of z for which:
    cosz + sinz = 1/3, -pi < z < pi
    P2 June 2001
    Can't do the bit in bold.
    If you have adobe acrobat please click the attachment :rolleyes:
    I should stick to mathtype if people want help with questions in the same week that they post them.
    The cos[z-(pi/4)] took me a while to produce and for some reason it wouldn't display very well if I included the expression on two lines without leaving a line space.
    The (sina)/(cosa)=tana wouldn't work in fraction mode either, which is annoying.
    Attached Images
  1. File Type: pdf LaTeX1.pdf (31.2 KB, 916 views)
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Gaz031)
    If you have adobe acrobat please click the attachment :rolleyes:
    I should stick to mathtype if people want help with questions in the same week that they post them.
    The cos[z-(pi/4)] took me a while to produce and for some reason it wouldn't display very well if I included the expression on two lines without leaving a line space.
    The (sina)/(cosa)=tana wouldn't work in fraction mode either, which is annoying.
    Thanks Gaz031, very well explained.
    Offline

    15
    ReputationRep:
    (Original post by Chris87)
    Thanks Gaz031, very well explained.
    Heh thanks! I'm not looking forward to typing a 60+ page project in it when at university but hopefully it will become easier with practice.
    Offline

    2
    ReputationRep:
    (Original post by Gaz031)
    If you have adobe acrobat please click the attachment :rolleyes:
    I should stick to mathtype if people want help with questions in the same week that they post them.
    The cos[z-(pi/4)] took me a while to produce and for some reason it wouldn't display very well if I included the expression on two lines without leaving a line space.
    The (sina)/(cosa)=tana wouldn't work in fraction mode either, which is annoying.
    how do you work out the 2nd answer of -0.547????
    i can never do them when they are in radians
    Offline

    15
    ReputationRep:
    (Original post by ruth_lou)
    how do you work out the 2nd answer of -0.547????
    i can never do them when they are in radians
    You use the fact that cosx is an even function, so:
    z-(pi/4)=(+-)1/(3rt2)
    Offline

    2
    ReputationRep:
    i still cant get that answer *cries*
    :banghead:
    Offline

    15
    ReputationRep:
    (Original post by ruth_lou)
    i still cant get that answer *cries*
    :banghead:
    -0.547=-1/(3rt2)+(pi/4)
    Offline

    2
    ReputationRep:
    do u get the formula for the trapezium rule?
    Offline

    15
    ReputationRep:
    Yet more of my messing around. A trig summary is attached.
    I'd appreciate it if anyone can tell me how to write (sina)/(cosa)=tana in latex. The \frac{sina}{cosa} input doesn't seem to work. Indeed, i'm having trouble writing any text in fraction form.
    Attached Images
  2. File Type: pdf trig summary 2.pdf (26.1 KB, 167 views)
 
 
 
The home of Results and Clearing

2,299

people online now

1,567,000

students helped last year

University open days

  1. Keele University
    General Open Day Undergraduate
    Sun, 19 Aug '18
  2. University of Melbourne
    Open Day Undergraduate
    Sun, 19 Aug '18
  3. Sheffield Hallam University
    City Campus Undergraduate
    Tue, 21 Aug '18
Poll
A-level students - how do you feel about your results?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.