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    (Original post by Maths is Life)
    Look at page 5 of the formula booklet under quotient rule. The 7 trigonometric functions need to be differentiated using subsitutions that WJEC usually give. The graphs are: tan^-1, cos^-1,sin*-1,sec,cosec,cot.
    If youre unsure just google it 👌👍😀
    I have the graphs I just don't have any proofs I never got taught them?
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    I don't think cot sec or cosec have ever been asked as a graph sketching q - although they are on the specification I've never been taught their graphs ahhhh
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    (Original post by 98matt)
    I don't think cot sec or cosec have ever been asked as a graph sketching q - although they are on the specification I've never been taught their graphs ahhhh
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    (Original post by 98matt)
    I don't think cot sec or cosec have ever been asked as a graph sketching q - although they are on the specification I've never been taught their graphs ahhhh
    You don't have to be taught the graphs, just work them out, it's good practice.
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    (Original post by JessyMarie)
    I have the graphs I just don't have any proofs I never got taught them?
    I dont know if youre lying or probably dont know what proofs are but if youre telling the truth your teacher should be sacked. Do you not a formula booklet?
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    (Original post by Maths is Life)
    I dont know if youre lying or probably dont know what proofs are but if youre telling the truth your teacher should be sacked. Do you not a formula booklet?
    I know what proofs are as we have them for c2 and yes I have the formula booklet you mean this page right?Name:  image.jpg
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    (Original post by JessyMarie)
    I know what proofs are as we have them for c2 and yes I have the formula booklet you mean this page right?Name:  image.jpg
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    Yeah - tanx to tan^-1 them seven. 1st requires use of quotient rule. Next 3 is chain rule. And last 3 is implicit or respect to y. 😀
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    (Original post by Maths is Life)
    Yeah - tanx to tan^-1 them seven. 1st requires use of quotient rule. Next 3 is chain rule. And last 3 is implicit or respect to y. 😀
    Right okay thank you
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    (Original post by JessyMarie)
    Right okay thank you
    Sorry I know I could explain further but Im sure your a mathematical genius gal
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    How did people find it? Easier or harder than recent papers?
    That synoptic circles question...
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    I thought it was a decent paper actually. If you've done all previous past papers, you could have done okay tbh.. There wee going to be a a couple of weird questions anyways..
    The recurance relation question, was it on radians mode? Please say it was. And then at the end I said its between the 4.5 value..
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    Everything's was fine apart from the circle 3 marker i thought, just couldn't remember any of the formulas from last year
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    (Original post by BubbleLover98)
    I thought it was a decent paper actually. If you've done all previous past papers, you could have done okay tbh.. There wee going to be a a couple of weird questions anyways..
    The recurance relation question, was it on radians mode? Please say it was. And then at the end I said its between the 4.5 value..
    Yeah it was in radians
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    I think the examiners from the WJEC must be aroused by flower beds tbh
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    (Original post by Ayaz789)
    It was a decent paper! Opinions on Grade boundaries?
    Tough paper but easier than the 2015 paper. I think 56-58 for an A
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    (Original post by Jack1066)
    Tough paper but easier than the 2015 paper. I think 56-58 for an A
    I need an A* :L i think i got 68 will that get me an A*?
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    What did everyone do for 1 (b)?
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    (Original post by Ayaz789)
    I need an A* :L i think i got 68 will that get me an A*?

    Last year was 62/75 for an A* (90 UMS) in C3, so if you got 68 then that is definitely gonna be an A*.

    Even in the easier years (pre 2013) 68 would have netted you an A*
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    Apart from question 5 it was alright paper and 1B is e^1 * your answer
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    What values did you get for a and b in the transformations question?
 
 
 
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