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# AQA Maths FP1 - 15 June 2016 [Exam discussion]

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1. (Original post by ollycostello)
I was wondering the same (did same thing)
(Original post by yelash)
How did people solve the equation 0.5(X-1)>(X-1)/(2X-1)(X+2) ? I cancelled out the two (X-1) brackets but that left me with two intersections, rather than the three evident from the graph.
You probably divided by (x-1) rather than factorising. You lose the solution x=1 if you do that.
2. (Original post by Chickenslayer69)
Yes, that was the wording, I remember.
I did that first but it says p is translated on to point (0,-4) by.... (Not exact wording )
3. (Original post by B_9710)
You probably divided by (x-1) rather than factorising. You lose the solution x=1 if you do that.
Ah yeah. Why can't you divide by X-1 out of interest? I know we've been find not to but unless i know why I'll irritably do the same in the future
4. [QUOTE=yelash;65815503]Ah yeah. Why can't you divide by X-1 out of interest? I know we've been find not to but unless i know why I'll irritably do the same in the future [/QUOTE

Division by zero. If x=1 then you would be dividing by zero. So unless x is definitely not allowed to be 1 (this would be in the domain probably) you are not allowed to divide both sides by x-1.
5. For the matrices question, for the last part, instead of doing BA^2 can you do B(0,-4) =(x',y') then do A^2(x',y')? which gives (8sqrt3.2) ?
6. boundary for an A??
7. (Original post by yaz1423)
boundary for an A??
My guess is 60-62 - it wasn't too bad a paper imo, although I had C3 straight after which probably gave me strong contrast. Core 3 was ****ing awful.
8. You guys are making me feel really bad for thinking q had to be real but was evidently complex, I wish I realised it earlier 😂😂😂😂😂
9. I have been reading this thread and I feel really pleased about how well I did in FP1. It was pretty nice unlike core 3.
10. (Original post by Red_Inferno112)
My guess is 60-62 - it wasn't too bad a paper imo, although I had C3 straight after which probably gave me strong contrast. Core 3 was ****ing awful.
Yeah I heard about that. Apparently students who usually get near our at 100 ums thought it was really hard, and everyone else was just crying really (at my school)
11. (Original post by yelash)
Ah yeah. Why can't you divide by X-1 out of interest? I know we've been find not to but unless i know why I'll irritably do the same in the future

(Original post by Physics Optimist)
Division by zero. If x=1 then you would be dividing by zero. So unless x is definitely not allowed to be 1 (this would be in the domain probably) you are not allowed to divide both sides by x-1.
Ok thanks! So how would you actually solve it then?
12. (Original post by Simsllama)
I have been reading this thread and I feel really pleased about how well I did in FP1. It was pretty nice unlike core 3.
Looking at the c3 thread I feel lucky that I did it last year (ours was a real nice paper)
13. (Original post by yelash)
Ok thanks! So how would you actually solve it then?
Multiply both sides by denominator, factorise, then simplify to get 3 linear factors.
14. (Original post by -jordan-)
That's the right answer if the question was finding the image of (-4, 0) under the combined matrix, but people seem to disagree as to what the question was.

I seem to remember the almost exact wording of the question being Find the image of (-4, 0) under the transformation represented by A^2 followed by a reflection in the line x+root(3)y. But maybe it wasn't.
Might ask my teacher for the wording haha
15. guys what did you get for the last question on the ranges for which one equation was > than another. how did you do it
16. I thiught the paper went quite well. For the dodgy imaginary numbers bit i used the fact that the sum of the roots would be the negative coefficent of z and the product would be the coefficrnt of the integer
The 2 roots being given to you
Hence solving p to be 4 and -4 and substituting into the product equation to obtain q.
I got q to just be 2 ingegers
17. Was the answer to the last question actually (sqrt3/2 , 2) ? If so I have no idea how I managed to get that one right. Overall I thought it went well but I was resitting it so I will have different views to those doing it for the first time. Low 60's for an A?
18. (Original post by tomdavis.)
What did everyone get on part b of the matrices question? And the values of q on the complex numbers question?

http://www.thestudentroom.co.uk/show....php?t=4168081
19. (Original post by Kedric123)
Was the answer to the last question actually (sqrt3/2 , 2) ? If so I have no idea how I managed to get that one right. Overall I thought it went well but I was resitting it so I will have different views to those doing it for the first time. Low 60's for an A?
this is what I got : http://www.thestudentroom.co.uk/show....php?t=4168081
20. (Original post by sufiyan1999)
I thiught the paper went quite well. For the dodgy imaginary numbers bit i used the fact that the sum of the roots would be the negative coefficent of z and the product would be the coefficrnt of the integer
The 2 roots being given to you
Hence solving p to be 4 and -4 and substituting into the product equation to obtain q.
I got q to just be 2 ingegers
Q was non real.

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