The Student Room Group

Edexcel C3,C4 June 2013 Thread

Scroll to see replies

Reply 1920
Avatar for ACBLISS
ACBLISS
Original post by MedMed12
Im sure you will!
Ohh is this like all the past paper questions in a booklet? Or like other questions? Going to start on Maths soon, I honestly feel like I’m failing L I don’t think I will get AAA but just going to try I guess.
Wow well done :O I’d be so happy with a score like that :P come on, losing one mark is inevitable :P
I think you mean Kal Ho Na ho!
Go you, how are you still alive and awake with all this work for Maths -_-
I want you to get into Warwick, because you deserve it!
Woahh :O


Yeah it's' that one.
Lol you'll get AAA dw :wink:
1 mark shouldn't have been lost! -_-
No YOLO! :cool:
lol i enjoy maths? :tongue:
We will see
and yeah but he's got a laid back attitude as he's doing another year and is going to aim for warwick and anooy me if i get in when he comes O.o But very smart..he's been playing Warcraft and played pokemon on his ds in further maths lessons lol.
Does anyone think I would be penalised if I used the product rule for questions where you could use the quotient?? I still get the same answer... I'm just more comfortable using the product rule. Anyone know if markschemes accept this alternative?
Reply 1922
Avatar for samfreak
samfreak
can someinw check through this i think its wrong because when u substitute the value 2 in dont u get -2ln-3 ? but they get -2ln3 :s-smilie:

Posted from TSR Mobile
1370291732174.jpg23.2KB
Reply 1923
Avatar for Prendah
Prendah
1
Original post by samfreak
can someinw check through this i think its wrong because when u substitute the value 2 in dont u get -2ln-3 ? but they get -2ln3 :s-smilie:

Posted from TSR Mobile


The "| |" brackets mean they take the absolute value, basically the positive.
Reply 1924
Avatar for samfreak
samfreak
Original post by Prendah
The "| |" brackets mean they take the absolute value, basically the positive.


thankssssss i was going mad haha x

Posted from TSR Mobile
Reply 1925
Avatar for nm786
nm786
2
Original post by Serpentine111
Does anyone think I would be penalised if I used the product rule for questions where you could use the quotient?? I still get the same answer... I'm just more comfortable using the product rule. Anyone know if markschemes accept this alternative?

you may still get marks but it makes more sense to use the quotient rule plus it's neater.
(edited 10 years ago)
Original post by ACBLISS
Yeah it's' that one.
Lol you'll get AAA dw :wink:
1 mark shouldn't have been lost! -_-
No YOLO! :cool:
lol i enjoy maths? :tongue:
We will see
and yeah but he's got a laid back attitude as he's doing another year and is going to aim for warwick and anooy me if i get in when he comes O.o But very smart..he's been playing Warcraft and played pokemon on his ds in further maths lessons lol.

oh coolio!
iA
haha good point, esp when its a silly mistake -_- In maths, most the time peoples mistakes are calculation errors.
That is crazy, but he won't be in your year though he'll be the year below so its fine :tongue: some people are so talented at Maths I just don't understand :tongue:
lol
Reply 1927
Avatar for ACBLISS
ACBLISS
Original post by MedMed12
oh coolio!
iA
haha good point, esp when its a silly mistake -_- In maths, most the time peoples mistakes are calculation errors.
That is crazy, but he won't be in your year though he'll be the year below so its fine :tongue: some people are so talented at Maths I just don't understand :tongue:
lol


If i get into Warwick that is lool :tongue:
Original post by ACBLISS
If i get into Warwick that is lool :tongue:


shh positive thinking!!! :smile:
Reply 1929
Avatar for ACBLISS
ACBLISS
Original post by MedMed12
shh positive thinking!!! :smile:


Yeah yeah lol :tongue:
I have a question for you, Integrate sin5xsin2x
Original post by ACBLISS
Yeah yeah lol :tongue:
I have a question for you, Integrate sin5xsin2x



you've asked me this same question before -_- or something similar
if you want a clue hint: by parts
Reply 1931
Avatar for ACBLISS
ACBLISS
Original post by MedMed12
you've asked me this same question before -_- or something similar
if you want a clue hint: by parts


incorrect :wink:
Original post by ACBLISS
incorrect :wink:


1/6*sin3x - 1/14*sin7x +C thats what I got. Tell me what I've done wrong. Don't ask me to show you my working. I don't know how to use our scanner on my laptop :colondollar:
Reply 1933
Avatar for ACBLISS
ACBLISS
Original post by MedMed12
1/6*sin3x - 1/14*sin7x +C thats what I got. Tell me what I've done wrong. Don't ask me to show you my working. I don't know how to use our scanner on my laptop :colondollar:


That's right, but you didn't have to use by parts lol....
Original post by ACBLISS
That's right, but you didn't have to use by parts lol....


realised after I posted my reply :P
Reply 1935
Avatar for ACBLISS
ACBLISS
Original post by MedMed12
realised after I posted my reply :P


Such a weirdo :biggrin:
Original post by ACBLISS
Such a weirdo :biggrin:


thats your name :h: (unless you prefer four eyes 8) )
anyway im going to bed now- had such throbbing head ache today :'( so night night!
Reply 1937
Avatar for ACBLISS
ACBLISS
Original post by MedMed12
thats your name :h: (unless you prefer four eyes 8) )
anyway im going to bed now- had such throbbing head ache today :'( so night night!

night night shorty
Daaaamn that integration of 2^t got me how do u do that ?
Original post by Revisionbug
Daaaamn that integration of 2^t got me how do u do that ?


y=2ty = 2^t

ln⁡y=ln⁡2t\ln y = \ln 2^t

ln⁡y=tln⁡2\ln y = t\ln 2

Differentiate both sides wrt t,

1y×dydt=ln⁡2\dfrac{1}{y} \times \dfrac{dy}{dt} = \ln 2

dydt=yln⁡2=2tln⁡2\dfrac{dy}{dt} = y\ln 2 = 2^t \ln 2

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you