Hey - thought I might ask you:
I got the ln(1+x) one fully done and perfect as far as I can see so I'll say 20
20
As well as this; I did the above which you quoted so we're in agreement at about 10.
10 (30 running total)
I also did the first question (binomial) but as far as I remember I did the first bit, I did x^24 in the first bit but I can't remember if my method was correct or not (I assume so as I got the right answer and I'm pretty certain I didn't try just to 'fit in' an answer) - and then did x^25 right (though that was barely worth a mark probably). I got x^66 wrong because I summed all the triangular numbers required, rather than doing 2 times all but the last. I did however use the correct triangle numbers.
Say 13-17 depending on whether marker believes you understand exactly what you were doing (43 - 47 running total)
I also did the integral question where I got everything except for didn't finish the last part. I had pretty much gotten it at f(x+sqrt(x^2+1)) - in fact I had at one point, then got to and wrote 1/t^2 + 1/t^4, thought it was wrong and put a line through it so we'll say that I haven't but I got very close. Everything else was right.
Again say 13 - 17 (running total 56 - 64)
I also did the first part of the graph sketching question and worked out the stationary points. I did the b > a+2 (I think it was something like that) one where there were 3 alternating 'humps' but did not find the stationary points - it was correctly drawn. I didn't get onto the b = a + 2
Probably 5 - 7 for part one; say 5 for second part (running total 66 - 76)
Got through the very first part of 8 (blah - 2 > 0) and a tiny bit of the next part.
Not very much say 2 - 3 (running total 68 - 79)
Where do you think this lands me, roughly? I know this is a lot to ask so if you don't feel like putting the effort into this (perfectly understandable
) then just don't reply
I feel like I'm on the wrong side of the 1/2 boundary but thought I'd get someone else's opinion.
Thanks!