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    (Original post by physicsmaths)
    (1+cos2x)/2 is a single trig function ......... Think of double angle formulae


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    Ahh ive got it now thanks.


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    does anyone know where it is possible to get the international C4 papers? thanks
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    (Original post by ibbi1824)
    does anyone know where it is possible to get the international C4 papers? thanks
    Physicsmathstutor website.


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    (Original post by physicsmaths)
    Physicsmathstutor website.


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    thanks!
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    (Original post by ibbi1824)
    does anyone know where it is possible to get the international C4 papers? thanks
    there is no international c4 paper! there is C34 for internationals which is a combination of c3 and c4
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    (Original post by Ripper Phoenix)
    there is no international c4 paper! there is C34 for internationals which is a combination of c3 and c4
    Probably means C4 R


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    Lets Go ! )

    Finally mastered C4 Vectors on every past paper; it took me the longest to get to grips with 3-4 days.

    I need to brush up on my C4 Integration skills before I hit past papers. Planning on doing x6 past papers before my C4 mock on Friday 9th. I hope my teacher doesn't push the date further back as I need to grind for 90+ in C2 & recap C3 skills.
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    (Original post by physicsmaths)
    Probably means C4 R


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    oh that's the +5hr timezone version for Asian countries
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    (Original post by Ripper Phoenix)
    there is no international c4 paper! there is C34 for internationals which is a combination of c3 and c4

    ahh ok that makes sense! i'm doing both so i guess it's good practice anyway
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    (Original post by physicsmaths)
    Go back and find similar examples. All problems are pretty much pythagoras and dot product.


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    I did what you said and did the mixed exercise looking at previous work Ive done and that night I got my c4 vectors mojo back....thanks for the help. Going to hit up the integration mixed exercise and then I'm gonna start hitting the papers. I got 100 in c1 & c2 last year. I hope I can do the same for c3 & c4 this year
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    (Original post by Hudl)
    I did what you said and did the mixed exercise looking at previous work Ive done and that night I got my c4 vectors mojo back....thanks for the help. Going to hit up the integration mixed exercise and then I'm gonna start hitting the papers. I got 100 in c1 & c2 last year. I hope I can do the same for c3 & c4 this year
    No problem. You could do the review exercise if you got time as that was the 'exam' practice I did for mocks and it worked. If not the mixed exercise should be enough to start the papers.
    Let's get 100 in C3/4 definitely doable!


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    I just went straight into exam papers, is that bad? I tried doing exercises from the book in April half term but found it so long.


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    (Original post by lam12)
    I just went straight into exam papers, is that bad? I tried doing exercises from the book in April half term but found it so long.


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    Well yh If your not struggling alot in the papers it is more then ok. But it is just extra practice.



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    In vector calculations, should i use rad or degree mode? Sometimes its obvious in the question but not always... Help!


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    (Original post by clara16)
    In vector calculations, should i use rad or degree mode? Sometimes its obvious in the question but not always... Help!


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    rad if theres trig (sin, cos, tan, cosec basically anything TRIG!). Otherwise degrees 247 baby
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    (Original post by Ripper Phoenix)
    rad if theres trig (sin, cos, tan, cosec basically anything TRIG!). Otherwise degrees 247 baby
    Haha thanks b 😂


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    (Original post by physicsmaths)
    No problem. You could do the review exercise if you got time as that was the 'exam' practice I did for mocks and it worked. If not the mixed exercise should be enough to start the papers.
    Let's get 100 in C3/4 definitely doable!


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    so do the mixed exercises for each & every chapter in C3 & C4 or just for the chapters that i at times struggle with; then go back to papers..?
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    (Original post by theDanIdentity)
    so do the mixed exercises for each & every chapter in C3 & C4 or just for the chapters that i at times struggle with; then go back to papers..?
    I may not be the greatest at Maths but I can say that the book taught me nothing about vectors lol. Half of the book is 2D which I haven't seen come up in a paper and the whole i,j,k layout is overused compared to the vector column method which is easier to understand(even if it's given as i,j,k in exams I still put it in column form)

    So yh vectors are something examsolutions and past papers will help with

    Otherwise the Mixed Exercise are a great way of getting up to scratch with all the topics
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    (Original post by Cosmocos)
    I may not be the greatest at Maths but I can say that the book taught me nothing about vectors lol. Half of the book is 2D which I haven't seen come up in a paper and the whole i,j,k layout is overused compared to the vector column method which is easier to understand(even if it's given as i,j,k in exams I still put it in column form)

    So yh vectors are something examsolutions and past papers will help with

    Otherwise the Mixed Exercise are a great way of getting up to scratch with all the topics
    Only the first part of the book is 2D. The mixed and review exercises are from past papers(early 2000s) so it can definitely come up.


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    Feels like im in a good position for C3 and D1, but C4 im no where near

    Need to make big improvements, thinking of spending whole next weekend, solidly around 20 hr weekend hammering C4 content and papers, atm im at a C grade average with C4

    After the weekend I hope I can get an A on every paper I try Left it late, arggh
 
 
 
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