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    (Original post by tyanayee)
    what did you guys write for "why is T self-inverse" for the matrix question?


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    I had no clue, I just found the determinant of the matrix.
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    Ah messed up first proof Q and very last part of last Q
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    What was the geometrical relationship between those lines?

    I put they were parallel, what was the other mark for?

    Also was z^2 -8i ?

    And for the modulus did people get 2.34?
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    (Original post by tyanayee)
    what did you guys write for "why is T self-inverse" for the matrix question?


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    You had to find the inverse of T. It was the same as T. So it is a self inverse
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    (Original post by mathew daniels)
    What was the geometrical relationship between those lines?

    I put they were parallel, what was the other mark for?

    Also was z^2 -8i ?

    And for the modulus did people get 2.34?
    No idea for the lines. I got a=-1 and so the modulus was sqrt(5), which is 2.34.
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    (Original post by tyanayee)
    what did you guys write for "why is T self-inverse" for the matrix question?


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    If you found the inverse of T you would show it was equal to T.
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    (Original post by LukeB98)
    I had no clue, I just found the determinant of the matrix.
    Did you get -1?
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    (Original post by mathew daniels)
    What was the geometrical relationship between those lines?

    I put they were parallel, what was the other mark for?

    Also was z^2 -8i ?

    And for the modulus did people get 2.34?
    1. rotated 135° or 3pi/4

    2. Dunno, didn't get there in time

    3. yeah





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    (Original post by WhatIsSleep)
    Did you get -1?
    Yeah I got -1 for the determinant.
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    (Original post by tejsanghavi)
    was the area of triangle 49root2/2
    there was an area of a triangle question!?!
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    Think i got ~50 which sucks... most questions were easy. Got confused/ stuck on the chord question (tried and failed), both inductions lol (obvs managed for n=1 but failed in n=k+1 ) and on the find a when z is a real number.. disappointed not sure how i could have done better. Thought series was my weak spot but that question was simple
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    (Original post by midgemeister7)
    there was an area of a triangle question!?!
    I don't remember there being one..
    Maybe different exam board?? Or fear mongering lol
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    (Original post by mathew daniels)
    What was the geometrical relationship between those lines?

    I put they were parallel, what was the other mark for?

    Also was z^2 -8i ?

    And for the modulus did people get 2.34?
    One had length sqr(5) and other had 2sqrt(5). So it is twice the length. I guess the first mark was working out the length
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    (Original post by themechguy)
    Why do you delight in telling people that? I've got 75/75 in past papers before and done a past paper every week since January and I found it slightly more challenging.
    Stop trying to antagonise.
    Nah jokes I know her the paper was ****ing solid probably dropped about 20 marks
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    For the modulus, I got 5? Thought it's just a real number with no 'I' component...
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    (Original post by mathew daniels)
    What was the geometrical relationship between those lines?

    I put they were parallel, what was the other mark for?

    Also was z^2 -8i ?

    And for the modulus did people get 2.34?
    Enlargement scale factor 2 followed by a translation of something like (-4,-3) dont remember the exact number
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    wtf i think it was really hard i may not get A can't do the prove induction question the first one got stuck for a along time……
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    (Original post by thelegend99)
    For the modulus, I got 5? Thought it's just a real number with no 'I' component...
    Should have been root5 iirc
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    i think i got 75
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    FP1 banter.


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