Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    Hello guys!

    I've got a problem! I was doing this past paper question, but me & the mark scheme disagreed a lot! I don't know, what they've done, but I'm sure I've been doing the right stuff.. Anyways, I've added the question, my response & mark scheme answer here:
    If you could have a look, and see where my errors are, that would be ace.

    Cheers in advance!
    Attached Images
        
    • Study Helper
    Offline

    15
    Study Helper
    (Original post by KiddingMe)
    Cheers in advance!
    One error is at the line 2.2=11p

    What happened to the "g" from the line before?

    That's sufficient to resolve the issue I think.
    • Thread Starter
    Offline

    0
    ReputationRep:
    Oh... I'm such a noob haha!

    Cheers, once again my saviour!

    PS: What is the mark scheme doing? Same answer, but it has a weird way of resolving than what we normally do (it's resolving horizontally/vertically instead of perp/parallel to plane)
    Oh well lol
    • Community Assistant
    Offline

    20
    ReputationRep:
    Community Assistant
    (Original post by KiddingMe)
    Oh... I'm such a noob haha!

    Cheers, once again my saviour!

    PS: What is the mark scheme doing? Same answer, but it has a weird way of resolving than what we normally do (it's resolving horizontally/vertically instead of perp/parallel to plane)
    Oh well lol
    I haven't looked at it but you can resolve in any pair of directions so long as they are perpendicular.
    • Thread Starter
    Offline

    0
    ReputationRep:
    Aah okie dokie
    Offline

    13
    ReputationRep:
    Haaa! I just did this question!

    http://examsolutions.net/a-level-mat...5&solution=5.2 - here's the solution.

    You solve it simultaneously. So as you solve perp to plane, and let R = 1.1gcos(alpha) +Psin(alpha) put it in the other equation where you solve parallel to the plane.. and solve it!

    Good luck.
    • Thread Starter
    Offline

    0
    ReputationRep:
    Cheers for the link! Much appreciated =)
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: April 1, 2013
The home of Results and Clearing

3,067

people online now

1,567,000

students helped last year

University open days

  1. Sheffield Hallam University
    City Campus Undergraduate
    Tue, 21 Aug '18
  2. Bournemouth University
    Clearing Open Day Undergraduate
    Wed, 22 Aug '18
  3. University of Buckingham
    Postgraduate Open Evening Postgraduate
    Thu, 23 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.