# Edexcel A2 C3 Mathematics 12th June 2015Watch

This discussion is closed.
3 years ago
#2021
(Original post by Maham88)
a^n X a^m =a^m+n
(a^n)^m= a^mn
(Original post by somevirtualguy)
Easy mistake, the powers are separated by brackets so they're multiplied rather than being added.
(Original post by SeanFM)
(a)^2 * (a)^3 = a^5. (you add here)

(a^2)^3 = a^6 (you multilpy a^2 by a^2 by a^2 giving a^6), so here you multiply.
ohh yeahh I forgot I think I need sleep been doing too much c3 I'm starting to make silly mistakes noww lol thanks!
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3 years ago
#2022
Im going to do every question I can

then come back to the ones I cant do

edexcel examiners are told to mark every response for a Q and award the highest mark solution ignoring others

so im going to go berserk, and answer some Qs three times, ill request my paper back if i do crap and emphasise that point lol

safe to say im not ready for this exam , well 2 months ago I could get an A in gold 4 but now dont know whats happened to me
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3 years ago
#2023
Need help with part a
Thanks

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3 years ago
#2024
(Original post by 1asdfghjkl1)
Attachment 425965

it is???
(Original post by NikolaT)
Holy ****. Well I'm ****ed if either of those proofs come up.
you guys are misunderstanding the meaning of the WORD PROOF!!

Have you never seen the iteration questions at the end it says prove that the answer of alpha is correct!

dont overthink too much okay:

THE SPEC SAYS Methods of proof, including proof by contradiction and disproof bycounter-example, are required. At least one question on the paperwill require the use of proof.

NOT AT ALL! THE PROOF BY CONTRADICTION IS DIFFERENT FROM WHAT YOU GUYS THINK SO RELAX

SOURCE: CONFIRMED BY MY TEACHER
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3 years ago
#2025
(Original post by Moniii16081997)
Need help with part a
Thanks

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Plug both in and see what you get.
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3 years ago
#2026
(Original post by SeanFM)
Plug both in and see what you get.
I don't get a negative number and a positive number.

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3 years ago
#2027
(Original post by Medicjug)
For the last part I keep getting two solutions when they only want one

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Yeah that is odd. I'm surprised they don't say 'answers' rather than answer. There are definitely two solutions so maybe they just want the positive solution.
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3 years ago
#2028
(Original post by Moniii16081997)
I don't get a negative number and a positive number.

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3 years ago
#2029

Good luck to everyone sitting the exam tomorrow.
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3 years ago
#2030
(Original post by Moniii16081997)
I don't get a negative number and a positive number.

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3 years ago
#2031
(Original post by Moniii16081997)
I don't get a negative number and a positive number.

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I do, something like -0.02 and 0.47. Make sure you use radians and you know arcisn is inverse sin right? sin^-1()?
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3 years ago
#2032
I'll post my answers. But arsey will post official ones.

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3 years ago
#2033
(Original post by ThePrestigeUK)
Im going to do every question I can

then come back to the ones I cant do

edexcel examiners are told to mark every response for a Q and award the highest mark solution ignoring others

so im going to go berserk, and answer some Qs three times, ill request my paper back if i do crap and emphasise that point lol

safe to say im not ready for this exam , well 2 months ago I could get an A in gold 4 but now dont know whats happened to me
Really?

So they give us method marks even if we go all over the place on a question we dont know.
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3 years ago
#2034
(Original post by suyoof123)
Really?

So they give us method marks even if we go all over the place on a question we dont know.
Arsey said yes they do, but there is no point writing 3/4 solutions because youd only get through 20% of the paper

However ill only resort to this if i have no idea what so ever obv first priority is to answer it to the best of my ability

its just exponential I struggle on tbh and a bit on mod functions but meh hope they dont come up as june 14 was packed with them
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3 years ago
#2035
(Original post by XxKingSniprxX)

Good luck to everyone sitting the exam tomorrow.

Good luck to you too

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3 years ago
#2036
When drawing the transformation of a function... what is the order it should be done?

Say -f(2x-5)+3

What order should I do the translation in? Thanks.

Also, I haven't time to look through the past few pages atm and I've seen mentions of a 'proof' - what proof do we need to learn for C3?
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3 years ago
#2037
June 2013 question 5c had me baffled - I thought i was going crazy for a bit. Very unusual for an edexcel question
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3 years ago
#2038
(Original post by ThePrestigeUK)
Arsey said yes they do, but there is no point writing 3/4 solutions because youd only get through 20% of the paper

However ill only resort to this if i have no idea what so ever obv first priority is to answer it to the best of my ability

its just exponential I struggle on tbh and a bit on mod functions but meh hope they dont come up as june 14 was packed with them
Thanks, will remember that but I'm hoping I dont have to resort to those tactics.
1
3 years ago
#2039
(Original post by Leking9)
June 2013 question 5c had me baffled - I thought i was going crazy for a bit. Very unusual for an edexcel question
and question 7)b)d)
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3 years ago
#2040
(Original post by ThePrestigeUK)
Arsey said yes they do, but there is no point writing 3/4 solutions because youd only get through 20% of the paper

However ill only resort to this if i have no idea what so ever obv first priority is to answer it to the best of my ability

its just exponential I struggle on tbh and a bit on mod functions but meh hope they dont come up as june 14 was packed with them
Some dudes also want a paper like june 13.

That paper is bluuudy abusive...the first question even is not part of what normally comes up and is long division !
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