Turn on thread page Beta
    • Thread Starter
    Offline

    1
    ReputationRep:
    This formula finds the area of a triangle, I could use it for Matrix triangle questions or Coordinate systems. :  \frac{1}{2}|(x_a - x_c)(y_b - y_a)-(x_a - x_b)(y_c - y_a)|

    Would I lose method marks?
    • Thread Starter
    Offline

    1
    ReputationRep:
    bump
    • Thread Starter
    Offline

    1
    ReputationRep:
    Zacken


    Student403
    • Thread Starter
    Offline

    1
    ReputationRep:
    bump
    Offline

    22
    ReputationRep:
    I know precisely who you are and yet I'm still going to help:

    Yes, you're allowed to use that, it is a special case of a more general one (shoelace) and is commonly used.
    Offline

    18
    ReputationRep:
    (Original post by Zacken)
    I know precisely who you are and yet I'm still going to help:

    Yes, you're allowed to use that, it is a special case of a more general one (shoelace) and is commonly used.
    ?
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    I know precisely who you are and yet I'm still going to help:

    Yes, you're allowed to use that, it is a special case of a more general one (shoelace) and is commonly used.
    Thanks dude, I knew there was some good in you.

    But, are you sure? Especially using this for Matrices would defy the clear root that they intend for you to take.
    Offline

    22
    ReputationRep:
    (Original post by DylanJ43)
    Thanks dude, I knew there was some good in you.

    But, are you sure? Especially using this for Matrices would defy the clear root that they intend for you to take.
    You certainly can, an examiner who uses this site has been asked this a few times - I'll link you to her post about it once I'm on my computer and can search it up.
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    You certainly can, an examiner who uses this site has been asked this a few times - I'll link you to her post about it once I'm on my computer and can search it up.
    Thanks you beauty
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Student403)
    ?
    Your friendly neighbourhood super hero Duck
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    You certainly can, an examiner who uses this site has been asked this a few times - I'll link you to her post about it once I'm on my computer and can search it up.
    Are you on your computer yet
    Offline

    22
    ReputationRep:
    (Original post by DylanJ43)
    Are you on your computer yet
    No, I'm not home. I used this formula in my FP1 exam this year btw.
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    No, I'm not home. I used this formula in my FP1 exam this year btw.
    Yeah, but you got 91 ums...

    Do you know what lost you marks?
    Offline

    22
    ReputationRep:
    (Original post by DylanJ43)
    Yeah, but you got 91 ums...

    Do you know what lost you marks?
    Yeah, I copied the wrong thing when moving from one page to the other. Lost 4 marks which got me 91 UMS.
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    Yeah, I copied the wrong thing when moving from one page to the other. Lost 4 marks which got me 91 UMS.
    That's a fear, I always have when doing past papers :/

    Did you use the formula for question 8b?
    Offline

    22
    ReputationRep:
    (Original post by DylanJ43)
    That's a fear, I always have when doing past papers :/

    Did you use the formula for question 8b?
    Meh, I can't really be arsed. I finished early and couldn't be bothered checking. My UMS in FP1 is pretty much irrelevant.

    I did, yes.
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    Meh, I can't really be arsed. I finished early and couldn't be bothered checking. My UMS in FP1 is pretty much irrelevant.

    I did, yes.
    Did you use the coordinates of OBC directly? I'm getting 1/2 ar
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    Meh, I can't really be arsed. I finished early and couldn't be bothered checking. My UMS in FP1 is pretty much irrelevant.

    I did, yes.
    zainy
    Offline

    22
    ReputationRep:
    (Original post by DylanJ43)
    Are you on your computer yet
    Here you go. Tiny hobbit is an examiner, so that's sorted.
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by Zacken)
    Here you go. Tiny hobbit is an examiner, so that's sorted.
    Thanks, but as for formula why am I getting 1/2 ar
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: March 25, 2016

974

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should universities take a stronger line on drugs?
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.