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# Edexcel Core 3 - 21st June 2016 AM watch

1. 1 keep an eye on time
2 make sure find all the solutions
3 don't miss any question
4 try drawing a graph when cannot solve problem sometimes e.g. Asked to find range of y
5 make sure answer is in the range. -90~90
6 be careful when substitute any value I.e. t or x..
7 don't think about how many marks u will get when sitting the exam it's a waste of time
2. Good luck to all. Hopefully there will be no hitler reaction videos after this exam.
3. (Original post by Craig1998)
Good luck to all. Hopefully there will be no hitler reaction videos after this exam.
People make them regardless of the exams difficulty...
4. Dont make too many mistakes guyz, hopefully nobody triggerd
5. good luck people xx

insta: @abcdefghijkleila_
6. We've got this!!
7. Good luck everyone
8. Are there any differentials we need to know that are not in the formula booklet?
9. (Original post by sirspiffy)
Are there any differentials we need to know that are not in the formula booklet?
yes
differential of x^x
10. (Original post by sirspiffy)
Are there any differentials we need to know that are not in the formula booklet?
make sure to learn it
11. Good Luck guys

And two tips I would give would be: When finding an equation, make sure to watch out if they want a tangent or normal!
And, when differentiating make sure that if it comes up as dx/dy you convert it to dy/dx
12. (Original post by cookie_raider01)
yes
differential of x^x
Isn't that C4?
13. (Original post by cookie_raider01)
yes
differential of x^x

which is A^x ln A right??
14. (Original post by minjinoor)
which is A^x ln A right??
yes
15. (Original post by minjinoor)
which is A^x ln A right??
That's the differential of a^x, the differential of x^x is x^x(ln(x) + 1), although I didn't know we needed to know it for c3
16. Hey guys, one teensy tiny question I'm still unsure about: are mod graphs that give you only one domain always symmetrical about an axis?
Thanks.

Best of luck!
17. How do i reduce my nerves before this exam?
18. (Original post by Polyrogue)
Hey guys, one teensy tiny question I'm still unsure about: are mod graphs that give you only one domain always symmetrical about an axis?
Thanks.

Best of luck!
If a function has a mod around the whole thing it is symmetrical on the x-axis, if the mod is just round the x term it is symmetrical on the y-axis

Does this answer it?
19. (Original post by Turtlebunny)
How do i reduce my nerves before this exam?
A good one is to take a deep breath in, hold it for five seconds, then slowly exhale. Do this a few times
20. (Original post by Music With Rocks)
If a function has a mod around the whole thing it is symmetrical on the x-axis, if the mod is just round the x term it is symmetrical on the y-axis

Does this answer it?
Answers it perfectly thanks.

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