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    I couldn't do part b of the series question 😩
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    Give me a fking decade to do that... Still wouldn't be able to get close to 75 ://// WTF
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    (Original post by JahJah)
    That was sexual. Did everyone else get lambda as 2/3 and k as 39 in the series question ??


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    Yes....
    But the cubic didn't much the first equation given in the question so I was like what the ****
    (Original post by Swindelz)
    You reckon it was harder that last year's?
    Yes..better be harder and low boundaries...

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    I got k as 39 for the series one
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    Did anyone else get z=-4 for that complex number one too?
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    (Original post by freddy4321)
    I got k as 39 for the series one
    Do you remember what the cubic was? I got one which seemed reasonable but couldn't find a solution.
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    (Original post by C0balt)
    Yes....
    But the cubic didn't much the first equation given in the question so I was like what the ****


    Yes..better be harder and low boundaries...

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    I got it to match it in the end, you may have had an error in your calculation


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    (Original post by -jordan-)
    Do you remember what the cubic was? I got one which seemed reasonable but couldn't find a solution.
    You ended up forming the cubic from right at the start and from that knew it was 39 or 40 and the inequality said it had to be < 0 so it was 39
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    for the roots alpha^2 and beta^2, what did people get? did it have to be imaginary numbers?
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    (Original post by JahJah)
    I got it to match it in the end, you may have had an error in your calculation


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    ......I didn't have time to check...

    (Original post by freddy4321)
    Did anyone else get z=-4 for that complex number one too?
    Yes
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    For the imaginary number one. For a+b i got for but I then put ab=5 and I believe this is wrong
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    (Original post by tanyapotter)
    for the roots alpha^2 and beta^2, what did people get? did it have to be imaginary numbers?
    I got imaginary
    1+-root(45/4) or soemthing
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    (Original post by tanyapotter)
    for the roots alpha^2 and beta^2, what did people get? did it have to be imaginary numbers?
    Yeah all the answers ive heard were complex
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    (Original post by tanyapotter)
    for the roots alpha^2 and beta^2, what did people get? did it have to be imaginary numbers?
    Yes. Got the quadratic as 4x^2 + 45 = 0, wasted most of my time checking that because I'd never seen them use imaginary roots.
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    (Original post by -jordan-)
    Yes. Got the quadratic as 4x^2 + 45 = 0, wasted most of my time checking that because I'd never seen them use imaginary roots.
    Haha same, i simplified the surd for part c and thought it looked very wrong but glad other people have got the same answer
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    (Original post by freddy4321)
    Haha same, i simplified the surd for part c and thought it looked very wrong but glad other people have got the same answer
    Think the surd came down to 3/2root(5)i?
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    That exam was a flipping screwjob 😅😅😅 ive dropped at least 10 marks
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    (Original post by -jordan-)
    Think the surd came down to 3/2root(5)i?
    Awww yes I got that answer, thought it was brutal for only 2 marks though
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    I think that was harder than last years paper.
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    (Original post by -jordan-)
    Yes. Got the quadratic as 4x^2 + 45 = 0, wasted most of my time checking that because I'd never seen them use imaginary roots.
    This is what I got too. The root of X is -a and -b so x^2 = a^2 and b^2, and they're looking for a^2 and b^2.

    So you should've got something like a^2 = -45/4 = b^2

    You didn't actually have to involve imaginary numbers
 
 
 
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