Competition - post a photo you've taken of nature >>

OCR C3 exam 14th June 2012

Scroll to see replies

I used an additional answer booklet as i ran out of space. Do i fill in the paper reference as 4723, or do i put the specification code? Does it matter if i put the wrong code as it was handed in along with my original answer booklet.

Reply 61

Anthony Ani

In the question where it says show the graph has only one root, how did people draw their graphs?
Also what did you get for the value of the root?

Reply 62

msimon

what did u guys get for the 7 marker one.. i gt a=4 and i gt a big fraction for the gf(x)=68 or summa :/
also, wt did u get for 9ii? i gt a quadratic equation involving e. (dunno where i gt it from)

Reply 63

tomfails

Original post by Anthony Ani

In the question where it says show the graph has only one root, how did people draw their graphs?
Also what did you get for the value of the root?

an upside down x^2 graph central, and an exponential graph never touching the y axis in the positive x quadrant only...

It was 3 point something from the iteration :smile:

(edited 11 years ago)

Reply 64

username967031

Original post by studentofskhs

no it wont matter as long as the sheet is correctly inside your paper and you have your name on it

Reply 65

tomfails

Original post by msimon

what did u guys get for the 7 marker one.. i gt a=4 and i gt a big fraction for the gf(x)=68 or summa :/
also, wt did u get for 9ii? i gt a quadratic equation involving e. (dunno where i gt it from)

a = 4 x = -0.5...

9ii pi((3/2*e^4) + 1/2)

= 1/2 pi (3e^4+1)

Reply 66

Anthony Ani

Original post by tomfails

an upside down x^2 graph central, and an exponential graph never touching the x axis in the positive x quadrant only...

It was 3 point something from the iteration :smile:

I drew an upside down x^2 graph and then an exponential graph that didn't touch the y axis :/

Reply 67

blueclearsky

unofficial mark scheme anyone? :smile:

Reply 68

Amazing Al

Looking forward to opening my results sheet and reading 100 UMS in August. :smile:

Reply 69

aware?

Original post by Anthony Ani

I drew an upside down x^2 graph and then an exponential graph that didn't touch the y axis :/

same

Reply 70

Satsui no hado

Wait how is everyone getting c=8 and k=3 or whatever? I got c=40 and k=3/5

Reply 71

Amazing Al

Original post by Satsui no hado

Wait how is everyone getting c=8 and k=3 or whatever? I got c=40 and k=3/5

It's quite simple.

Reply 72

Tyles

Original post by Amazing Al

It's quite simple.

being an A2-level maths exam, nothing is 'quite simple'.
the arrogance was strong with this one

Reply 73

Amazing Al

Original post by Tyles

being an A2-level maths exam, nothing is 'quite simple'.
the arrogance was strong with this one

Sorry for expressing my true opinion, but I could have done that exam in my sleep anyway.

Reply 74

Xenia7

Yeah i got negative numbers for θ

This was posted from The Student Room's Android App on my GT-I9100

Reply 75

Tyles

Original post by Amazing Al

Sorry for expressing my true opinion, but I could have done that exam in my sleep anyway.

Sometimes true opinions are better left unsaid, like the opinion I get of you right now.

Reply 76

Amazing Al

Original post by Tyles

Sometimes true opinions are better left unsaid, like the opinion I get of you right now.

Sorry for any inconvenience this may have caused you.

However, the starter of this thread asked how we found C3 so I was simply answering his question. :smile:

Reply 77

Satsui no hado

Original post by Amazing Al

Sorry for expressing my true opinion, but I could have done that exam in my sleep anyway.