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# Edexcel FP2 Official 2016 Exam Thread - 8th June 2016 watch

1. Does anyone know the reason why a june 2013 paper was withdrawn? Was there an error on the paper?
2. (Original post by MarocMan)
Does anyone know the reason why a june 2013 paper was withdrawn? Was there an error on the paper?
Some papers were lost and could have been leaked for people to see before the exam, you can read about it here : http://www.bbc.co.uk/news/education-22887009
3. (Original post by Pyslocke)
For part b, they say to solve for -pi < theta < pi, but the answers given go above that boundary. Are these answers correct or are they unnecessary? If so, how many marks would you lose for answers above the boundary?
How do you show 5c? the roots on an argand diagram
4. (Original post by wr123)
Some papers were lost and could have been leaked for people to see before the exam, you can read about it here : http://www.bbc.co.uk/news/education-22887009
In the article you linked it says "The paper is C3 Unit 6665 mathematics... "
5. For June 2010 question 3 (b) 1 mark, how did they deduce that it is x>-2? Please help!
6. Can anyone telling me what I'm doing wrong in part b? I'm separating the variables but it gives a nasty reciprocal on on of the integrals which proves difficult to solve. Am I going about it the right way?
7. (Original post by Alby1234)
Can anyone telling me what I'm doing wrong in part b? I'm separating the variables but it gives a nasty reciprocal on on of the integrals which proves difficult to solve. Am I going about it the right way?
Seems fine, you get 1 / (2v(1+v)) on one side which you then use partial fractions on to get two logarithmic terms.
8. (Original post by Alby1234)
Can anyone telling me what I'm doing wrong in part b? I'm separating the variables but it gives a nasty reciprocal on on of the integrals which proves difficult to solve. Am I going about it the right way?
seperate variables, gives you 1/(2v + 2v^2) dv = 1/x dx and use partial fractions on the left side
9. (Original post by Tizzydag)
How do you show 5c? the roots on an argand diagram
https://www.scribd.com/doc/77051635/...l-FP2-Textbook

5c)

you just use your answers from part b and plot them on an argand diagram like you normally would.
10. https://8dedc505ac3fba908c50836f5905...%20Edexcel.pdf

Q7b, when we solve sin(5theta) = -0.5, the first value we get is -pi/6. Why cant we use that negative value? Can 5theta not be - ve?
11. Any good non-edexcel papers?
12. (Original post by imnoteinstein)
https://8dedc505ac3fba908c50836f5905...%20Edexcel.pdf

Q7b, when we solve sin(5theta) = -0.5, the first value we get is -pi/6. Why cant we use that negative value? Can 5theta not be - ve?
No you can use it as long as your range is - 5pi to 5pi and not 0 to 10pi. Your x solutions will still be the same
13. (Original post by ravichauhan11)
No you can use it as long as your range is - 5pi to 5pi and not 0 to 10pi. Your x solutions will still be the same
aight, thanks man!
14. Please can anyone explain how to do question 13c? Thanks
15. Have you guys ever come across a question where we had to use the q<= p < 2q condition for drawing a shape?

Cause at the moment I just use my graphing calculator but I'm not sure if I should be learning that stuff anyway
16. (Original post by Cpj16)
Can someone pls do me a massive favour and give me a worked solution for this step thanks x
BUMP
17. (Original post by imnoteinstein)
https://8dedc505ac3fba908c50836f5905...%20Edexcel.pdf

Q7b, when we solve sin(5theta) = -0.5, the first value we get is -pi/6. Why cant we use that negative value? Can 5theta not be - ve?
Which year is that paper?
18. (Original post by Snasher350)
Which year is that paper?
June 2014 (R)
19. (Original post by economicss)
Please can anyone explain how to do question 13c? Thanks
Here's the solution I conjured up, hope it helps.

20. (Original post by ImJared)
Here's the solution I conjured up, hope it helps.

Thanks so much! It says in the answers though that the answer for part c is 1, but not sure whether it's wrong or not?!

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