Does Cambridge give us our marks (based on score and/or ability) or do they simply write down our scores and give them to MOE who will moderate them and create the bell curve?

I am asking this because I am afraid I am scoring a low 70s due to a lot of careless mistakes 🙁

Thanks!

]]>Hmmm ...

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Did you steps tally?

]]>For some reasons I did it using the GP way but ended up with the same answer. Is there a likelihood that marks will be deducted ><''

]]>Sorry for the long hiatus. I found h in terms of r using the volume expression, so that part would be the same as the answer scheme. Yeah I do hope method marks will be given, since there is really no difference in the method other than the base area, and quite a lot of people from my school had left out the base area when calculating as well..

As for question 11, I realised I had unwittingly integrated x in terms of y, and it so happened that the answer was the same in magnitude. So I suppose I will lose the method marks and hopefully get one mark for the right answer...

Luckily paper 2 managed to pull me up, despite being a harder paper.

]]>Hi Sir, but the problem is that when I continued to solve it using the additional formula, the final answer I get is 2 sin 0.5θ cos0.5θ. I am unable to get cot 0.5θ.

thanks!

]]>Q11(i) Using Additional Formulae is perfectly fine, though it looks a bit tedious 😉

]]>For Q3, though it wasn't explicitly stated, I really think Cambridge's intention is to test your concept in utilizing the given expression of `u`_{n} rather than coming up with your own G.P. method.

As mentioned here, method marks and ECF are determined by the mark scheme, and that they are given when it was only the substitution of a wrong value in your appropriate steps that led to the wrong answer.

While I think there's a good chance they're allocated here with [7] & [5] marks in parts (i) & (ii), I'm really hoping they'll be lenient in your case since omitting the base area would have affected the expressions for the surface area, its derivative, `r` and `h`. (unless you've gotten some of the above right?)

For Q11, you seem to have done it the same way as me. If so, you shouldn't get −3π. Have you gotten your limits the other way round in the definite integral?

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