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AQA Further Maths FP1 June 5th 2015

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I couldn't do part b of the series question 😩
Give me a fking decade to do that... Still wouldn't be able to get close to 75 ://// WTF
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
Did anyone else get z=-4 for that complex number one too?
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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JahJah
2
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
for the roots alpha^2 and beta^2, what did people get? did it have to be imaginary numbers?
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
For the imaginary number one. For a+b i got for but I then put ab=5 and I believe this is wrong
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
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
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.
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
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?
That exam was a flipping screwjob 😅😅😅 ive dropped at least 10 marks
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
Reply 158
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a123a
14
I think that was harder than last years paper.
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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