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    southampton or lancaster for a insurance? (they want the same grades)
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    (Original post by ccfcadam36)
    southampton or lancaster for a insurance? (they want the same grades)
    Lancaster

    But they're both in completely different areas of the country so it depends....
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    (Original post by RunLikeAFairy)
    Hiya!
    My boyfriend's applied for maths and doesn't use TSR so I thought I'd nosey for him....
    has anyone heard from Leeds yet?
    Thank you
    I just got an offer from Leeds today for G101
    So fingers crossed he hears soon.....!
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    I got an offer from Uni of Leeds today for G101 Maths AAB.....
    I'm so happy
    Now i just have to choose...aahhh!!!
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    (Original post by BeccaCath94)
    I got an offer from Uni of Leeds today for G101 Maths AAB.....
    I'm so happy
    Now i just have to choose...aahhh!!!
    :woo: Well done :woo:
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    (Original post by cpdavis)
    :woo: Well done :d :woo:
    thank you
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    (Original post by BeccaCath94)
    I just got an offer from Leeds today for G101
    So fingers crossed he hears soon.....!
    Ahh! thank you! I've just told him to check his emails. Well done by the way
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    (Original post by BeccaCath94)
    I got an offer from Uni of Leeds today for G101 Maths AAB.....
    I'm so happy
    Now i just have to choose...aahhh!!!
    congratulations! im glad you got an offer! what are you thinking in terms of firm/insurance choices now?
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    Anyone else do OCR D2 today?

    and can't decide between Imperial, UCL and Durham for a firm and insurance! All G100
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    (Original post by lifesabeach)
    Anyone else do OCR D2 today?

    and can't decide between Imperial, UCL and Durham for a firm and insurance! All G100
    Everyone on here will tell you Imperial has the better course.

    Outside of that factor I guess it just depends on whether you want to study in London or up north in a collegiate uni.
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    Has anyone received an offer for Maths with economics from LSE?
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    (Original post by RunLikeAFairy)
    Ahh! thank you! I've just told him to check his emails. Well done by the way
    I hope he gets an offer
    Thank you!

    (Original post by skibur)
    congratulations! im glad you got an offer! what are you thinking in terms of firm/insurance choices now?
    Same!! I'm so happy!! It's my joint first choice... i have 2 that i cant choose between uni wise but the grade requirements have determined their order....
    So leeds will be my firm and lancaster my insurance.... :/
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    Is everyone ready for FP1 on friday? Whoever's sitting the paper that is
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    (Original post by gwenllian94)
    Is everyone ready for FP1 on friday? Whoever's sitting the paper that is
    I have FP1 on monday....must be a different exam board! :eek:
    Good luck!
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    Is anyone doing FP1 edexcel on monday (or has already done it)?
    I have a few queries......
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    (Original post by BeccaCath94)
    Is anyone doing FP1 edexcel on monday (or has already done it)?
    I have a few queries......
    Yep, go ahead
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    (Original post by officeface)
    Yep, go ahead
    Do we need to know modulus argument form? I dont see what it is??
    When we use brackets for intervals whats the difference between () and []??
    And finally parametric forms.......the c and t and a....ahhh!!!! They confuse me!

    Thanks
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    (Original post by BeccaCath94)
    Do we need to know modulus argument form? I dont see what it is??
    When we use brackets for intervals whats the difference between () and []??
    And finally parametric forms.......the c and t and a....ahhh!!!! They confuse me!

    Thanks
    You need to know mod/arg form. It's basically a way of representing x + iy. If you imagine a complex number x + iy on an Argand diagram (where the y-axis represents the imaginary plane and the x-axis the real plane), the modulus is the "length" of the line from the origin to your point on the plane.

    For example, taking the complex number 3 + 4i, the modulus of that is the length needed to get from (0, 0) to (3, 4). So the root of  3^2 + 4^2 which is 5.

    The argument of a complex number is the angle it makes between the positive real axis and the line of the complex number. Using the earlier example of 3 + 4i, the argument will be  arctan(4\div3) just using basic trigonometry. Bear in mind, the argument  \theta must be between  -\pi and  \pi . So it's negative below the x-axis and positive above.

    You also need to know the "modulus-argument" form of a complex number - that is  x + iy = r(cos(\theta) + isin(\theta)) where r is the modulus and theta the argument. You don't need to know how to derive this.

    ------------------------------------------

    As far as concerns brackets for the intervals used in interval bisection etc. in FP1, you only need to use the form []. I believe the difference between [] and () is that [] includes the upper and lower limits, whereas () doesn't - but I may be mistaken here. Check out the symbols at the back of your text book - there's a full page of them and it should tell you what these mean.

    -------------------------------------------

    With the parabolic functions, it always goes that  y^2 = 4ax So if you get  y^2 = 36x then a = 9. (a, 0) is the focus of the parabola and x = -a is the directrix.

    They express the x and y coordinates in hyperbolas and parabolas in parametric form. Whereas in Cartesian two-dimensional form, you use just the x and y variables, parametric form brings in a third variable - t or c or whatever you want it to be, and x and y are both functions of that third variable. By muddling these around and equation x and y using t, you can get rid of it and find the equation in Cartesian form - but it's usually horrid, thus the need for parametric form.


    That's all I can think of off the top of my head. Your best bet is to go over the FP1 book on those sections as I'm sure it's much easier to understand than my poor explanations and use of Latex are :P Hope I've helped to some extent.
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    Thank you
    So very helpful!

    One last thing: do you do anything with the mod arg form once put into that form? Or is it just a way of presenting the information?

    I still dont really get parametric when finding the eqn of a tangent etc but i'll have a look......

    Do we need to know any proofs that you know of? (derivation ones not proof by induction (ch7))
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    (Original post by BeccaCath94)
    Thank you
    So very helpful!

    One last thing: do you do anything with the mod arg form once put into that form? Or is it just a way of presenting the information?

    I still dont really get parametric when finding the eqn of a tangent etc but i'll have a look......

    Do we need to know any proofs that you know of? (derivation ones not proof by induction (ch7))
    It may ask you to express a complex number in mod-arg form, or vice versa (going the other way, simply expand the brackets on it - really easy). You don't do anything more with that til FP2.

    Have you done (I think) C4 yet? That covers implicit differentiation and provides a much more elegant way of finding the eqn to the tangent in the parabola questions. Otherwise, here's how you do it:

     y^2 = 4ax 



y = 2\sqrt{a} x^{\frac{1}{ 2}}



{\dfrac{dy}{dx}}  = {\sqrt{a} x^{\frac{-1}{2}}}

    Then put in your x coordinate to get the gradient of the tangent at that point.
    Then use the equation  y-y_1 = m(x-x_1) Stick in the gradient as  m then x and y coordinates as  x_1 and  y_1 and off you go!


    I don't think you need any knowledge of proofs except for induction in FP1.
 
 
 
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