# 2016 Edexcel C2 Morning exam[discussion thread]Watch

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3 years ago
#21
(Original post by Reda2)
Did you guys get for the log question 0.47 or something? And for area of S where integrate with limits to get the area, one limit was 0 and I go 3 as the other limit, what did you guys get?
-2.19
1
3 years ago
#22
(Original post by Reda2)
Did you guys get for the log question 0.47 or something? And for area of S where integrate with limits to get the area, one limit was 0 and I go 3 as the other limit, what did you guys get?
I got 9 as the limit and 24.3
0
3 years ago
#23
Could someone post an unofficial mark scheme?
0
3 years ago
#24
Who had to think hard about the first question? Cuz i had to
0
3 years ago
#25
How is the trigonometry question ? For the second one?
0
3 years ago
#26
(Original post by David_a)
For the question that said i cant use any graphical or numerixal method to solve, i used identities to find a form where i could factorise it. I did so and then found theta with the 180-theta +360n method. Will i get marks?
The graphical or numerical methods the examiners are referring to are by using a graphing calculator to read off the line and the numerical is by trial and error.
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3 years ago
#27
(Original post by Hangk13)
What did everyone get when substituting their x value into the 2nd differential to show it was a minimum point? (very last question part e)

I got a really small decimal??
Yeah same like 0.6
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3 years ago
#28
(Original post by Gregsta99)
Could someone post an unofficial mark scheme?
http://www.thestudentroom.co.uk/show....php?t=4117259
0
3 years ago
#29
(Original post by Lewis_Annear)
Yeah same like 0.6
that's not the answer you forgot to put it back into the P
0
3 years ago
#30
(Original post by AstarAstarA)
S = 24.3

it was 0 to 9
I got the same. ☺️☺️☺️
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3 years ago
#31
(Original post by Hangk13)
What did everyone get when substituting their x value into the 2nd differential to show it was a minimum point? (very last question part e)

I got a really small decimal??
Same I got like 0.000093 or something
0
3 years ago
#32
Who got -1.602 for the last part on Question 1?
1
3 years ago
#33
(Original post by AstarAstarA)
-2.19
You got x= ( log 7 / log 2) -5 = -2.19 too? Sweeet
0
3 years ago
#34
How'd people feel about this exam? It was much easier than C1 imo
0
3 years ago
#35
(Original post by Laceypr82)
Same I got like 0.000093 or something
I got 0.425 for d^2P/dx^2
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3 years ago
#36
(Original post by Gregsta99)
Could someone post an unofficial mark scheme?
I am going to cyber bully you
0
3 years ago
#37
What did u guys get for the value of A, B and K for the binomial expansion??
0
3 years ago
#38
You don't actually have to sub a value into the second derivitive. You can just keep it as the value and determine if its max/min from whether it is positive of negative.

That being said, you don't lose marks for subbing it in.
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3 years ago
#39
Loved it
0
3 years ago
#40
How do you do this part?

Solve: 2^(2x+5) -7(2^x)=0

Got all the rest of the paper right, but not these 4 marks.
0
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