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    Really cant do C4 after all the revision I did for it it just doesn't stick with me enough to grasp it which is really depressing as if I walk in and do the first question I have a C in A level maths, where as I require 54% for a B in A level Maths which sounds do able but I don't think I can grasp enough in the 4 hours tomorrow morning before the exam and thats so depressing
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    (Original post by GeorgeFrainza)
    Really cant do C4 after all the revision I did for it it just doesn't stick with me enough to grasp it which is really depressing as if I walk in and do the first question I have a C in A level maths, where as I require 54% for a B in A level Maths which sounds do able but I don't think I can grasp enough in the 4 hours tomorrow morning before the exam and thats so depressing
    Gap year and less partying ...

    It is not the end of the world.
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    (Original post by TeeEm)
    Gap year and less partying ...

    It is not the end of the world.
    I don't think a C will be the end of the world its just disappointed in myself
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    (Original post by GeorgeFrainza)
    I don't think a C will be the end of the world its just disappointed in myself
    well it happens sometimes ...
    If if causes you problems with University Entry, then gap year
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    (Original post by TeeEm)
    well it happens sometimes ...
    If if causes you problems with University Entry, then gap year
    Is that what you would recommend and then do the exam externally ?
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    (Original post by GeorgeFrainza)
    Is that what you would recommend and then do the exam externally ?
    I'd recommend you go to sleep (like what I should be doing rn :/) and do the utmost you can when you wake up, whether this be memorizing formulaes, techniques or even completing an additional paper or going through the things you don't understand. 54% was only around 43 marks last year - and assuming similar boundaries, that means you can easily drop a nice 30 marks if a B is what you really need. Otherwise, gap year and externally enter the resit would be the way to go.
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    It's 2:44 and my family are silent
    With dreams that could last them all night.
    But for me, I can't join them; my dreams have turned violent,
    With the threat of tomorrow's big fight.

    A big fight like no other, a difficult exam,
    Testing algebra, vectors and more.
    But the scary thing for me is missing out the plus C
    When integrating 'y' in C4.

    Partial fractions seem easy but they keep me awake,
    For I never know what they could hide.
    Throw in tan, cos and sin and you have a new shrine
    To the students who've struggled and cried.

    As you can probably tell, I'm bored and I'm tired,
    But I find it hard getting to sleep.
    Good luck for tomorrow, I hope you do well,
    Now I'm off to start counting some sheep.
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    What Area's/Volumes of shapes do we need to know?
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    (Original post by Hash1mate)
    What Area's/Volumes of shapes do we need to know?
    Cube and cylinder
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    (Original post by princessBG)
    how do you get these formulae?
    For the 2nd one, From the formula Cos2A, one of the Double angle identities. Cos2A= 1-2sin^2a
    therefore cos2a-1=-2sin^2a, therefore, -cos2a/2 +1/2 = sin^2a (divide by 2 then by-1 to flip signs) Then Simpified to 1/2(1-Cos2A)

    And for the first one, Cos2A=Cos^2 a - sin^2 a. (Cos^2a = 1-sin^2 a)
    Therefore Cos2A=1-Sin^2 a - Sin^2 a = 1-2sin^2a
    Dividing by -2 and subtracting 1 from both sides gives -Cos2A/2 +1/2 = sin^2 a
    simplfied to 1/2(1+Cos2A)
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    (Original post by paradoxicalme)
    Cube and cylinder
    Thanks^^
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    anyone june 13R QUESTION 4B PLEASE??
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    Cos(2a) = cos^2(a) - sin^2(a)
    Cos(2a) = cos ^2(a) - (1 - sin^2(a))
    Cos(2a) = 2cos^2(a) - 1
    > rearranging:
    Cos^2(a) = 1/2[cos(2a) + 1]

    apply the same logic for sin^2(a)
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    Good luck guys ☺️


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    It is in the afternoon right?!?!
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    Good luck people
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    (Original post by rock the boat)
    It is in the afternoon right?!?!
    Yes
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    (Original post by ridirahman)
    just expand the bracket maybe? that would make it much easier..
    That would be soo long! Do you think they could ask us something like that?


    Posted from TSR Mobile
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    (Original post by rock the boat)
    It is in the afternoon right?!?!
    Haha I had the same panic yesterday 😁

    Btw guys which volumes do we need to know for core 4? Cylinder,cone...?


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    (Original post by V0ldemort17)
    Haha I had the same panic yesterday 😁

    Btw guys which volumes do we need to know for core 4? Cylinder,cone...?


    Posted from TSR Mobile
    Looking at the 2014 paper; they will give the formula to work out shape volume/area if we need to use it.
 
 
 
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