You are Here: Home >< Maths

# Edexcel A2 C3 Mathematics 12th June 2015 watch

1. (Original post by edexcel*******s)
F****** nipple
Hahaha
2. THAT WAS THE WORST EXAM OF MY LIFE

Posted from TSR Mobile
3. For the last question, was f(x) an increasing or decreasing function? I said that it was decreasing...
4. (Original post by bored565)
oh my god that trig proof question was designed by satan himself
yes what was that!!
5. (Original post by mathsmo19)
A good paper I think, there were definitely some challenging bits so we can still hope for a low UMS. Lost two marks on 2b?!? Does anyone know how to do :

tan(theta) = p
Find Cos(theta) in terms of p?

I think parts a and c were 2p/(1-p^2) and (1+p)/(p-1)

Cos(θ)=1/secθ=1/(1+tan^2θ)^1/2=1/(1+p^2)^1/2
6. (Original post by Hani1666)
Yep same!
What did you get for finding values in the graphing question? I got something like 5/2 or something like that. Also, what did everyone get for the range of g? Mine had an e in it? So I said that 0 was less than or equal to g(x) less than or equal to (can't reember what i put, it had an 8 and an e in it)
7. (Original post by Nick_888)
For the last question, was f(x) an increasing or decreasing function? I said that it was decreasing...
Decreasing, complete 50:50 guess as I thought the bottom was larger than the top
8. (Original post by sj97)
What did you get for finding values in the graphing question? I got something like 5/2 or something like that. Also, what did everyone get for the range of g? Mine had an e in it? So I said that 0 was less than or equal to g(x) less than or equal to (can't reember what i put, it had an 8 and an e in it)
Had an e in it, was like -4eto the 4 something < g(x) < something positive with e
3pi/10 for the y intercept of tangent?
I got this!!!
10. (Original post by angrybirdzzz)
What did you get for the function at the last question? Increasing or decreasing?
Increasing
11. F***s sake edexcel do they think its a joke setting papers. Do they not realize that there are going to be student sitting these papers, and do they not realize that the results of these exams determine which uni we go to and ultimately our job prospects. Do they think this is a joke? I need grades and edxcel, you have f***ed my life. F*** you edexcel
12. The last question.. It was increasing.. You'll see when the model answers are out
-3k/(whatever)^2

K is negative, so gradient at any given point is positive

Therefore it is an increasing function

Posted from TSR Mobile
14. (Original post by emilyak)
THAT WAS THE WORST EXAN OF MY LIFE

Posted from TSR Mobile
I neeeeeed a B/high C so worried
15. That paper was pretty hard for C3. I couldn't get my head around the sec^2A + tan^2A question at all.
16. Okay June 2013 was actually in fact easier. I am predicting even lower grade boundaries for this one, possibly 48 for a A. The June 2013 one had only one tricky question, here there were at least 3 funnily worded question. I mean which cruel person starts an exam in the manner in which they did?!
17. (Original post by scales1996)
Decreasing, complete 50:50 guess as I thought the bottom was larger than the top
I wrote increasing, since k was negative and I got dy/dx = -k/something squared

So overall you get a positive value for all values for dy/dx, therefore gradient is always positive so f(x) is increasing
18. (Original post by RobHunter97)
-3k/(whatever)^2

K is negative, so gradient at any given point is positive

Therefore it is an increasing function

Posted from TSR Mobile
Exactly
19. (Original post by Nick_888)
For the last question, was f(x) an increasing or decreasing function? I said that it was decreasing...
I got increasing. Not sure though as I thought it was going from roughly 0 to roughly 1 as x got higher

Posted from TSR Mobile
20. (Original post by Johann von Gauss)
It was increasing, because the derivative was always positive (remember k was a negative constant)
YEAHHHHH

Only question I couldn't answer was the question 8 trig identity part A, how the hell do you do that?!

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: June 21, 2016
Today on TSR

### Cambridge interviews

Find out which colleges are sending invitations

### University open days

• University of East Anglia
Fri, 23 Nov '18
• Norwich University of the Arts
Fri, 23 Nov '18
• Edge Hill University
Sat, 24 Nov '18
Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE