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# Edexcel C3 Jun 05 - How Did It Go? watch

1. How Did You Guys Find The C3 Paper 2day?
(this Is Early Because I Wanted 2 B Z First Person On Z Thread Muwahahaha)
2. was ok...sum tings were dodge...that trig q took me bit of time...i was a bit flustered so i just kept fudging it up
3. did u get root 52 for R and .588 for alpha??
4. Tough paper. yep its root 52 and alpha is 0.588.

For the last q, i can remember 14 years. And the graphing modulus thing is like a W shape.

hmm, for no.1 the trig question, there are 3 solutions, and one of them is 0. That's all I can remember =o
5. (Original post by TheWolf)
Tough paper. yep its root 52 and alpha is 0.588.

For the last q, i can remember 14 years. And the graphing modulus thing is like a W shape.

hmm, for no.1 the trig question, there are 3 solutions, and one of them is 0. That's all I can remember =o
yes I got the exact same answers as you on all of those question!!!! , makes me feel good to know that at least lol

Could you do part 5d though? I really couldn't, it was the last part of that √52 question that asked you to hence solve something

A good paper imo however, I made a couple of stupid mistake, but i so far only can think of 8 marks that I lost (possibly 11)
6. meh i did really badly on that test, i was only confident on about half the questions, think i might quite a few silly mistakes
7. (Original post by theisticandy)
yes I got the exact same answers as you on all of those question!!!! , makes me feel good to know that at least lol

Could you do part 5d though? I really couldn't, it was the last part of that √52 question that asked you to hence solve something

A good paper imo however, I made a couple of stupid mistake, but i so far only can think of 8 marks that I lost (possibly 11)
part d was tough, i had to substitute the R equation = 3. I think thats what you do anyways =o

couldnt do the last question (1mark q)
8. 2.12 radians for the long trig question (as well as 0 and pi)
9. For that 5 part d, I used all of the answers to the previous questions and substituted them into the equation it gave you. So you got something like (8 = theta, V = root) cos8 (V52 sin(8-0.588) - 3) = 0.

Therefore, cos8 = 0 or the bit in the brackets = 0

Yeah i also got 0, pi (which is 1.something radians) and 2.12 radians
10. what did people get for the question with the graph where you had to find the coordinate values of a and b?
11. For one of the q you have to find when [modulus(x-1) -2] intersects 5x

it would only intersect with -(x-1) -2

so its -x + 1 -2 = 5x

6x = -1
x = -1/6

i cant remember the q totally correctly, so this might be wrong
12. I got -1 and -2, dunno if that's right tho
13. b=-1 and a =-2
14. (Original post by TheWolf)
For one of the q you have to find when [modulus(x-1) -2] intersects 5x

it would only intersect with -(x-1) -2

so its -x + 1 -2 = 5x

6x = -1
x = -1/6

i cant remember the q totally correctly, so this might be wrong
I believe that is correct
15. pretty hard I thought, missed out the last two parts on the modulus question and I couldn't do the 1 mark proof question on Q7, think I managed a B though.
16. I got the same as TheWolf

For the graph question (draw y=f(|x|)

Did anyone get it like this: http://img132.echo.cx/my.php?image=untitled5yo1.jpg
17. Nope. hmmm I got a W shape?
18. For the last question proof I did

2x3e^x = 1

2x = 1/(3e^x)
2x = 1/3e^-x
x = 1/6e^-x

(x = alpha)
19. (Original post by SunGod87)
I got the same as TheWolf

For the graph question (draw y=f(|x|)

Did anyone get it like this: http://img132.echo.cx/my.php?image=untitled5yo1.jpg
I got the graph as a W shape. (where line of symmetry is y axis)
20. Oh actually you lot are right, reflect in the y axis. Damn

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