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# Edexcel Core 3 - 21st June 2016 AM watch

1. (Original post by imran_)
https://a086a5a2f39bda93734c56a63fab...%20Edexcel.pdf

hi for question 4b i need help for the range. So far ive subbed 0 into it to get g(x)<= 3

but i dont understand how the other value is calculated
What's the horizontal asymptote?
2. (Original post by Zacken)
What's the horizontal asymptote?
it tends to 0
3. (Original post by imran_)
it tends to 0
Uh, no it doesn't, have a think about it.
4. (Original post by Zacken)
Uh, no it doesn't, have a think about it.
it tends to infinity
5. (Original post by imran_)
it tends to infinity
Are you even bothering or just making random guesses?
6. (Original post by imran_)
it tends to infinity
Substitute in a really large value of , what number do you get close to?
7. (Original post by Zacken)
Are you even bothering or just making random guesses?
from what I can see, the asymptote is going towards the x axis. Theres a reason why I asked for help on this question as i have limited understanding
8. (Original post by imran_)
from what I can see, the asymptote is going towards the x axis. Theres a reason why I asked for help on this question as i have limited understanding
Don't do it by observation. Do his method as he said above
9. (Original post by imran_)
from what I can see, the asymptote is going towards the x axis. Theres a reason why I asked for help on this question as i have limited understanding
Sub in a really large value of , what number do you get close to?
10. (Original post by Zacken)
Substitute in a really large value of , what number do you get close to?
gets closer to 0.5, is this the actual method to use? or is there an alternative approach
11. (Original post by imran_)
gets closer to 0.5, is this the actual method to use? or is there an alternative approach
The alternative method to use is
12. what does iygb stand for
13. (Original post by boyyo)
what does iygb stand for
My guess is 'if you're (a) gonad buster'? (I know it's buster gonad, but still )
14. (Original post by SeanFM)
My guess is 'if you're (a) gonad buster'? (I know it's buster gonad, but still )
if you got...brains?
15. (Original post by 13 1 20 8 42)
if you got...brains?
I fancy your suggestion better than mine
16. (Original post by SeanFM)
My guess is 'if you're (a) gonad buster'? (I know it's buster gonad, but still )
(Original post by 13 1 20 8 42)
if you got...brains?
LOL yh I think that makes more sense
17. How hard are the AEA meant to be compared to the c3/c4 exams?

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18. (Original post by ben_urwinator)
How hard are the AEA meant to be compared to the c3/c4 exams?

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Quite a bit more difficult
19. Can anyone please explain why the square root of e^-2x is e^-x Thanks

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