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    What did people get for the square root of 9+40i or something like that
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    (Original post by AvKar)
    What did people get for the square root of 9+40i or something like that
    5+4i
    -5-4i
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    (Original post by Benabell81)
    5+4i
    -5-4i
    I got this as well
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    (Original post by AvKar)
    What did people get for the square root of 9+40i or something like that
    I got 5+4i and -5-4i
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    Did you lot get 1/2n(n-1)(2n+3) for the first question?
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    (Original post by JamesLing_)
    Did you lot get 1/2n(n-1)(2n+3) for the first question?
    I did
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    Hey did you guys get the matrix bit to be consistent?
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    (Original post by kathrynloops)
    Hey did you guys get the matrix bit to be consistent?
    Yeah I did
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    (Original post by JamesLing_)
    Did you lot get 1/2n(n-1)(2n+3) for the first question?
    I put the equation into wolfram alpha and apparently that's not right. The correct answer is 1/2n(2n^2 +n -3).

    The equation was sum of (3r+1)(r-1) wasn't it?
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    (Original post by olegasr)
    I put the equation into wolfram alpha and apparently that's not right. The correct answer is 1/2n(2n^2 +n -3).

    The equation was sum of (3r+1)(r-1) wasn't it?
    It's the same thing but just multiplied out isn't it?
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    What did people get for where the circle and line l meet?
    I got something like 3(or 2 I can't remember)+5i and 4+i
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    (Original post by Benabell81)
    I got 1/(k^2)
    I got that too👍
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    I think the last question was 5/41 + 4/41i with plus or minus (4 answers), two other people in my class and I got the same answer
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    (Original post by swagmister)
    I think the last question was 5/41 + 4/41i with plus or minus (4 answers), two other people in my class and I got the same answer
    I got that
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    (Original post by swagmister)
    I think the last question was 5/41 + 4/41i with plus or minus (4 answers), two other people in my class and I got the same answer
    I believe I got that
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    For the matrix question

    Did anyone get: Sheer y axis invariant SF 3

    The matrix Q=
    ( 0 -1 )
    ( -1 0)

    Which is a reflection in the line y=-x
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    (Original post by Benabell81)
    For the matrix question

    Did anyone get: Sheer y axis invariant SF 3

    The matrix Q=
    ( 0 -1 )
    ( -1 0)

    Which is a reflection in the line y=-x
    (Original post by Benabell81)
    For the matrix question

    Did anyone get: Sheer y axis invariant SF 3

    The matrix Q=
    ( 0 -1 )
    ( -1 0)

    Which is a reflection in the line y=-x
    Pretty sure i said it was a shear in the x axis..
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    (Original post by 8Alex)
    Pretty sure i said it was a shear in the x axis..
    Yh same
 
 
 
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