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    (Original post by Samtheoneson)
    I used quotient rule for dy/dt but got slightly diffrent answer
    I think we all agree that 1/2e^4 is the answer but I don't think it matters what method you use
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    question 8b, I didn't use the first part of the question and I just did the second part as is and i got something like sin3y - 3ycos3y = -1/9(4+9x) + 1/36 + pi

    ........ wtf did i do
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    (Original post by gcsekid)
    Some of these r rong mate
    Which? They look all good to me according to my memory
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    (Original post by Qcomber)
    Which? They look all good to me according to my memory
    -1/2 < x < 1/2 pretty sure this is just mod x < 1/2 ???
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    (Original post by matty9)
    -1/2 < x < 1/2 pretty sure this is just mod x < 1/2 ???
    Just different way of writing... Doesn't matter
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    (Original post by C0balt)
    Just different way of writing... Doesn't matter
    Oh yeah, forgot about the mod, being +/-, never knew you could write it that way
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    (Original post by Samtheoneson)
    No = 13/35
    cos(theta) = 23/35 for a fact cos I got 92/140 initially and then simplified it down to 23/35
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    (Original post by samilahmed)
    cos(theta) = 23/35 for a fact cos I got 92/140 initially and then simplified it down to 23/35
    Then you worked it out wrong because it was 52/140 simplified to 13/35
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    (Original post by Crespo0008)
    Then you worked it out wrong because it was 52/140 simplified to 13/35
    i agree... i got 13/35
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    (Original post by C0balt)
    I think we all agree that 1/2e^4 is the answer but I don't think it matters what method you use
    I left my answer as 328e^2/656e^-2 i think, this is still correct right as it didnt ask for it in a certain form?
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    (Original post by bencurnow)
    As it was (1+2x) we have -1 < 2x < 1 so -1/2 < x < 1/2
    D'oh. I guess it's just one mark lost.
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    (Original post by mertyuiop)
    I left my answer as 328e^2/656e^-2 i think, this is still correct right as it didnt ask for it in a certain form?
    Hopefully the examiner bothers to spot that it's indeed a half
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    (Original post by mertyuiop)
    I left my answer as 328e^2/656e^-2 i think, this is still correct right as it didnt ask for it in a certain form?
    first of all how did you get that

    second of all all it said waas find dy/dx didnt specifiy simplified form so yous hould get it
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    (Original post by Number Nine)
    first of all how did you get that

    second of all all it said waas find dy/dx didnt specifiy simplified form so yous hould get it
    Im not sure tbh, i did quotient rule on both x and y and ended up with a 4 tier fraction. Then i subbed t into each line separately and got that answer.
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    you know for the vectors questions? to find the acute angle, was it to find the acute angle between the line 1 and line 2?
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    (Original post by harrybo6)
    you know for the vectors questions? to find the acute angle, was it to find the acute angle between the line 1 and line 2?
    You just had to find the cos of the angle between L1 and L2.
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    AQA scan and send our papers to multiple examiners to mark right, and the marks we get is the average of that?, or is it just 1 guy who marks it all
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    I got 13/40....
    I did get 52/140, maybe I somehow simplified it wrong or I'm just remembering my final answer wrong
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    Am i the only one that thats ran out of time for q 8
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    (Original post by crimson1234)
    AQA scan and send our papers to multiple examiners to mark right, and the marks we get is the average of that?, or is it just 1 guy who marks it all
    One examiner marks your paper, but a few papers are sent to two examiners at random to judge how accurately they're marking, if they're marked by two maybe they take the average.
    I think that's how my teacher said it works, anyway
 
 
 
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