Guys, since the c3 exam was so tough I'm only expecting the same for c4..however, the edexcel papers are far too easy....do u guys know where i can find more challenging papers? thanks
Guys, since the c3 exam was so tough I'm only expecting the same for c4..however, the edexcel papers are far too easy....do u guys know where i can find more challenging papers? thanks
Does anyone have a table with grade boundaries for each year? It will be useful to know which papers were considered the most challenging and most straight forward. Thanks
Does anyone have a table with grade boundaries for each year? It will be useful to know which papers were considered the most challenging and most straight forward. Thanks
Okay my prediction for the C4 exam is that it will either be piss easy or it will pure rape. Unfortunately though bigger odds are that it will be the latter.
Okay my prediction for the C4 exam is that it will either be piss easy or it will pure rape. Unfortunately though bigger odds are that it will be the latter.
I have to ask, when you say 'pure rape', what's your definition of 'impure rape'?
how did you see it, do you have and tips on intergrating
Hmmm just because I've seen a similar question before. So if I see sin and cos multiplied in the same integral I always check whether inspection is the way to go. There's a couple of others like that, that should be checked, such as 2x+1/x^2+x which would integrate to ln(x^2+x).
Hmmm just because I've seen a similar question before. So if I see sin and cos multiplied in the same integral I always check whether inspection is the way to go. There's a couple of others like that, that should be checked, such as 2x+1/x^2+x which would integrate to ln(x^2+x).
That example is not inspection though, that's using the f'(x)/f(x) integrals rule
That example is not inspection though, that's using the f'(x)/f(x) integrals rule
Well I think if you have 2 functions multiplied together, firstly, check if it simplifies. If not then you look to see whether one of the functions differentiates to be of the form of the other function. Then, if neither of these are possible, go for integration by parts.