Hey there! Sign in to join this conversationNew here? Join for free
    Offline

    19
    ReputationRep:
    (Original post by arsenalfc97)
    okay cool. Why is the integral of 2cosec2x Intanx? don't remember coming across this
    it is in the formula booklet ... (if you need it which is unlikely)

    the proof requires further maths (little t identities)
    Offline

    2
    ReputationRep:
    What formulas do we need to know for differential equations? ( cone, sphere etc.)
    Offline

    2
    ReputationRep:
    I think I'm the only person aiming for a high fail in this exam tomorrow :P
    Offline

    17
    ReputationRep:
    Edexcel will be like
    Attached Images
     
    Offline

    2
    ReputationRep:
    (Original post by arsenalfc97)
    okay cool. Why is the integral of 2cosec2x Intanx? don't remember coming across this
    Substitute u = 2x and du=2dx
    Then multiply cosec(u) by [cosec(u) + cot(u)]/[cosec(u) + cot(u)]

    Substitute p= cosec(u) + cot(u) and dp=...

    It all works nicely. Then you just have to re substitute to get back to x
    Offline

    2
    ReputationRep:
    Is a D in A-Level maths any good? :/
    Offline

    2
    ReputationRep:
    good luck for tomorrow everyone! x
    Offline

    15
    ReputationRep:
    (Original post by CalebS5)
    Is a D in A-Level maths any good? :/
    They'll get you a lot of "ayy you got the D" jokes.
    Offline

    2
    ReputationRep:
    Can anyone help me or point me into some help on:

    Differential equations... Desperate here, have no idea how to even comprehend them.

    Integration by substitution... I get it, but it doesn't come to me.

    Tricky vectors questions like in last years paper.
    Offline

    2
    ReputationRep:
    (Original post by CalebS5)
    Is a D in A-Level maths any good? :/
    This is me right now
    Offline

    2
    ReputationRep:
    I swear if this exam is hard, i will go down to edexcel and test all of their chins with a swift uppercut


    Posted from TSR Mobile
    Offline

    19
    ReputationRep:
    (Original post by CalebS5)
    Is a D in A-Level maths any good? :/
    it is good for carpentry.
    Offline

    3
    ReputationRep:
    (Original post by Toussaint)
    Can anyone help me or point me into some help on:

    Differential equations... Desperate here, have no idea how to even comprehend them.

    Integration by substitution... I get it, but it doesn't come to me.

    Tricky vectors questions like in last years paper.
    Lol



    Posted from TSR Mobile
    Offline

    19
    ReputationRep:
    (Original post by raypalmer)
    I swear if this exam is hard, i will go down to edexcel and test all of their chins with a swift uppercut


    Posted from TSR Mobile
    I will send these two along
    Attached Images
     
    Offline

    2
    ReputationRep:
    Name:  343.jpg
Views: 81
Size:  29.8 KB
    Offline

    2
    ReputationRep:
    (Original post by Toussaint)
    Can anyone help me or point me into some help on:

    Differential equations... Desperate here, have no idea how to even comprehend them.

    Integration by substitution... I get it, but it doesn't come to me.

    Tricky vectors questions like in last years paper.
    So you want us to tutor you on the whole of c4? Not going to happen man. Especially at this time of night. You should've worked at school/college instead of waiting until now. If you want help then ask specific questions where I'd be happy to help you!
    Offline

    2
    ReputationRep:
    It's quite ironic considering my Dad is the head of maths at my school, yet I freaking suck at it...
    Offline

    2
    ReputationRep:
    (Original post by TeeEm)
    I will send these two along
    Loooool, their chins have gone, chin testing at its finest


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by Toussaint)
    Can anyone help me or point me into some help on:

    Differential equations... Desperate here, have no idea how to even comprehend them.

    Integration by substitution... I get it, but it doesn't come to me.

    Tricky vectors questions like in last years paper.
    I get stuck in differential equations too haven't really covered that chapter

    just keep doing past paper questions I guess?
    Offline

    2
    ReputationRep:
    (Original post by TeeEm)
    it is good for carpentry.
    I'm not entirely sure if that's an insult, or if it's merely a statement of fact :P
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Has a teacher ever helped you cheat?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • 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

    Write a reply...
    Reply
    Hide
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.