Pearson/Edexcel International A-level Mathematics Core Mathematics C12 8th Jan 2018 Watch

aris12343
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How did everybody do? Ive heard mixed opinions on it
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mohammedbydoon
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Hi
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mohammedbydoon
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Whats value of n and k in bionmial epansion last questoon
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aris12343
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(Original post by mohammedbydoon)
Whats value of n and k in bionmial epansion last questoon
K was 4.5, n was 8. Confirmed, last part was 5103 also confirmed
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mohammedbydoon
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(Original post by aris12343)
K was 4.5, n was 8. Confirmed, last part was 5103 also confirmed
True , what about differentiantion integreation q
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aris12343
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(Original post by mohammedbydoon)
True , what about differentiantion integreation q
The area of the integration one was something like 499/24, you had to find the small area under the curve from 3.0 to 3.5 by integrating and adding the trapezium.

The differentiation question you had to differentiate the equation, set it to 0 for the maximum, and get the larger value, then you had to substitute it into the d2V/dx2 to get a negative value and prove that it was maximum
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mohammedbydoon
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Correct , whats area if triange
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IALselfstudy
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Hmm , I got the answer with something/24 , do you guys think it is a bit harder than past year paper ?
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aris12343
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(Original post by mohammedbydoon)
Correct , whats area if triange
By the way the answer for the differentiation one was 3.03, just confirmed it. You hd to reject the 10.3 one.

The log part b was log2/log3 confirmed aswell.

The triangle one was 5sqrt305/2
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Maserati11
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for volume question, wasnt it like 3.03?
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ItsFrznn
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It was really hard
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aris12343
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(Original post by Maserati11)
for volume question, wasnt it like 3.03?
Yup! You got it correct
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aris12343
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(Original post by IALselfstudy)
Hmm , I got the answer with something/24 , do you guys think it is a bit harder than past year paper ?
Yes the answer was 499/24, you probably got it right since it was divided by 24. And maybe, didnt seem too hard other than the bearing one.
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mohammedbydoon
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How many marks on log question last part
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aris12343
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(Original post by mohammedbydoon)
How many marks on log question last part
4 marks
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mohammedbydoon
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Whats the answer of sum of r(-ur)
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Naim00
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I had to completely skip the last question and somehow went halfway correct of that volume question then gave up after getting positive value(s)... Anyone remembers the marks of these two questions? Solving papers of last five years. I can honestly say this was far by the hardest C12 paper 😭😭
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ek2001
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Last question was 10 marks
i could nt do it as well it was very hard
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mohammedbydoon
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What about sun of r-ur ?
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Futurechemist
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(Original post by mohammedbydoon)
What about sun of r-ur ?
It was 18
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