OCR (non mei) Further Pure 1 20th May 2016
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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
Original post by Benabell81
5+4i
-5-4i
-5-4i
I got this as well
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
Did you lot get 1/2n(n-1)(2n+3) for the first question?
Original post by JamesLing_
Did you lot get 1/2n(n-1)(2n+3) for the first question?
I did
Hey did you guys get the matrix bit to be consistent?
Original post by kathrynloops
Hey did you guys get the matrix bit to be consistent?
Yeah I did
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?
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?
The equation was sum of (3r+1)(r-1) wasn't it?
It's the same thing but just multiplied out isn't it?
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
I got something like 3(or 2 I can't remember)+5i and 4+i
(edited 7 years ago)
Original post by Benabell81
I got 1/(k^2)
I got that too👍
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
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
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
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
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
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
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..
Original post by 8Alex
Pretty sure i said it was a shear in the x axis..
Yh same
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