Hey there! Sign in to join this conversationNew here? Join for free
    Offline

    2
    ReputationRep:
    Does anyone know of any more questions I can do? I've done all of the past papers and the pdf that has al the relevant questions from 2002-now, I don't think doing the same questions over again is too effective..
    Offline

    3
    ReputationRep:
    (Original post by Elcor)
    Could someone explain what their method would be for part (d) of this question please? Here was my method but it was fairly algebra-heavy and I'm rusty on vectors so I'm wondering if there's an easier way:

    Find the plane that l2 lies in by using r.n=b.n (plane has same normal vector but passes through B)
    Sub components of D into Cartesian equ of this plane to get a linear equation with a in terms of b
    Use Pythagoras with the given distance and sub in previous equation to get a quadratic in terms of b
    Solve for b then sub back into equation for a.
    This is what i did (hopefully correct)

    Find AC, use this as direction vector of l2, form equation of line with this and point B.

    Since B lies on this line, equate vector B to L2 to get a=3 and b = -6?

    Is that right?
    Offline

    1
    ReputationRep:
    (Original post by chemlover12)
    I-zero = the integral of one (limits of 0 --> sqrt3)
    I forgot about the limits, now I feel stupid. Thanks for the help
    Offline

    3
    ReputationRep:
    (Original post by smem_96)
    I forgot about the limits, now I feel stupid. Thanks for the help
    Haha, no worries
    Offline

    19
    ReputationRep:
    (Original post by Ilovemaths96)
    This is what i did (hopefully correct)

    Find AC, use this as direction vector of l2, form equation of line with this and point B.

    Since B lies on this line, equate vector B to L2 to get a=3 and b = -6?

    Is that right?
    When trying to assist I ended up doing a similar long method and getting the same answers; your method is probably the hoped for quick one
    Offline

    13
    ReputationRep:
    (Original post by Ilovemaths96)
    This is what i did (hopefully correct)

    Find AC, use this as direction vector of l2, form equation of line with this and point B.

    Since B lies on this line, equate vector B to L2 to get a=3 and b = -6?

    Is that right?
    Yeah that's right
    Offline

    12
    ReputationRep:
    (Original post by luckystar1900)
    Does anyone know of any more questions I can do? I've done all of the past papers and the pdf that has al the relevant questions from 2002-now, I don't think doing the same questions over again is too effective..
    Check out http://mathematics-solutions.co.uk/E...tory/index.php for pre 2000 spec questions :P
    Offline

    2
    ReputationRep:
    FP3 and S2 at the same time. Why?
    Offline

    2
    ReputationRep:
    (Original post by Boop.)
    Check out http://mathematics-solutions.co.uk/E...tory/index.php for pre 2000 spec questions :P
    Thank you!

    (Original post by simonli2575)
    FP3 and S2 at the same time. Why?
    Haha right??? Especially silly as most people taking S2 are further mathematicians so are likely to be doing FP3 as well! They should have put S2 on same day as M5 or even have FP3 tomorrow or something...
    Offline

    2
    ReputationRep:
    (Original post by luckystar1900)
    Haha right??? Especially silly as most people taking S2 are further mathematicians so are likely to be doing FP3 as well! They should have put S2 on same day as M5 or even have FP3 tomorrow or something...
    Don't you mean today?
    Offline

    2
    ReputationRep:
    Only just realised that my cashed in Maths A Level will be recashed, they'll rearrange modules, and essentially I need 17 UMS max in this for my A*. Not too much lower than the 35 I thought I needed but still takes some more pressure off 😂


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by simonli2575)
    Don't you mean today?
    Yeah haha, forget what day it is without regular school
    Offline

    2
    ReputationRep:
    (Original post by luckystar1900)
    Yeah haha, forget what day it is without regular school
    We boarders are still forced to go to school for breakfast. God ****ing dammit.
    Offline

    18
    ReputationRep:
    Cant even be bothered for this exam tbh.


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    Can someone help me with 3b and 3c.

    https://3a14597dd5c7aa2363f067571766...%20Edexcel.pdf
    Offline

    13
    ReputationRep:
    (Original post by physicsmaths)
    Cant even be bothered for this exam tbh.


    Posted from TSR Mobile
    How was STEP III?

    Posted from TSR Mobile
    Offline

    3
    ReputationRep:
    for example 33 of green pearson textbook, we could just use the formula given in the formula book for perpendicular distance between point and plane rather than the given method which is slightly complicated right?
    Offline

    18
    ReputationRep:
    (Original post by Elcor)
    How was STEP III?

    Posted from TSR Mobile
    Pretty ****


    Posted from TSR Mobile
    Offline

    3
    ReputationRep:
    (Original post by physicsmaths)
    Pretty ****


    Posted from TSR Mobile
    Sounded like you banged step II tho
    Offline

    18
    ReputationRep:
    (Original post by DanTheMan358)
    Sounded like you banged step II tho
    Na didn't bang it one of my solutions had errors so I'm sitting in 70s which might not even get me a 1. My partials were **** aswell.


    Posted from TSR Mobile
 
 
 
Poll
Do you agree with the PM's proposal to cut tuition fees for some courses?

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.