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Edexcel C1/C2 June 2014

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DAMNIT I thought 6root5 was the hypotenuse wtf was I thinking
Original post by Ilovemaths96
i doubt anything below 75 will get 100 ums, edexcel is a pain in the neck like that


Yeah Edexcel generally keep the marks required for 100UMS high. Normally it's 75 marks required or sometimes 74 if the paper is harder. This is ignoring what happened with regards to the grade boundaries for the C3 paper last year.
Original post by Ilovemaths96
question asked it in the form a + b(root3)


But that doesn't mean a and b couldn't be fractions
Original post by HeyItsMegan
But that doesn't mean a and b couldn't be fractions


true but you need to seperate terms
Original post by Shady778
what did everyone get for the integration question?i got -root(3)/9 as one part and i forgot what my a value was


YES!!! I got that. Thank god, I thought I'd made a mistake because the numbers were weird.
Original post by Ilovemaths96
true but you need to seperate terms

/
What exactly do you mean? do you mean state the value of a and b individually?
Reply 526
Avatar for YNM96
YNM96
forgot to square 4 for the circles question but everything else was right, how much did i lose?
Original post by SpartanN7
YES!!! I got that. Thank god, I thought I'd made a mistake because the numbers were weird.


Was your 'a' value 2/3?
when will the unofficial mark scheme be up then?? Tonight??
LMAO u guys just go through the thread again from page 74! the discussion started there! the whole paper has been discussed.. too many repeated questions but yeah a was 2/3
Original post by paras agarwal
lmao u guys just go through the thread again from page 74! The discussion started there! The whole paper has been discussed.. Too many repeated questions but yeah a was 2/3


yayaaayay,
looks like the only Q i screwed up on was the N question
I got 1 for some reason LOL
For the log question, did anyone get x=1.63 and x=1???
For the log question did anyone get x=1.63 and x=1???
Original post by AlmaMorocco
For the log question did anyone get x=1.63 and x=1???


Yep!
Original post by Shady778
yayaaayay,
looks like the only Q i screwed up on was the N question
I got 1 for some reason LOL


I got 1 too :/


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Original post by randlemcmurphy
Yep!


Thank god!!!!
I tried substituting them into the original equation and got -0.001346??!!
But I guess it's close to 0:biggrin::biggrin:
Reply 536
Avatar for YGurung
YGurung
2tanx -3sinx=0
2sinx/cosx -3sinx=0
sinx(2/cosx-3)=0

sinxx=0 and cosx=2/3

Therefore, x = 0, -0.84 or 0.84
Original post by YGurung
2tanx -3sinx=0
2sinx/cosx -3sinx=0
sinx(2/cosx-3)=0

sinxx=0 and cosx=2/3

Therefore, x = 0, -0.84 or 0.84


Is this right?
Original post by Uberphuq
Is this right?


Sinx=0

x=0,pi,-pi also

Guess what?
I did all that and forgot to put 0!!
Reply 539
Avatar for YGurung
YGurung
Original post by Uberphuq
Is this right?


Oui :smile: Because the answer I replied to is wrong since you can't work out the cos-1 of anything that is greater than 1.

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