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    (Original post by usycool1)
    Yes, it was asked years ago (if you're asking about Edexcel). Can't remember the exact year, though.
    Aw, I guess I better learn it then haha.
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    (Original post by MathsNerd1)
    That's the same as my brother, he's also got R.e too so has 3 exams all on the same day, how painful.

    On another note I found out the other day that someone in Year 8 is finishing off his GCSE in Maths this year and is starting his A level in Maths next year! It's insane that people can actually do this!


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    I could have done the GCSE then, but a level, I think I'd have had to have had some lessons

    I have some clashes
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    (Original post by L'Evil Fish)
    Yeah

    S1 I feel **** about :lol: haven't done anything for it...
    That's alright, just regurgitate the formulae for S1 and you're good to go :yy:
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    (Original post by L'Evil Fish)
    I could have done the GCSE then, but a level, I think I'd have had to have had some lessons

    I have some clashes
    Best of luck, just don't let them bother you and I've got to get back to work now, speak later on to help people out if needed


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    (Original post by Felix Felicis)
    Ohou We all remember that Emma girl's interview blunder Irrespective, she would get it
    I'm sure she would
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    (Original post by justinawe)
    That's alright, just regurgitate the formulae for S1 and you're good to go :yy:
    I have a different S1!
    (Original post by MathsNerd1)
    Best of luck, just don't let them bother you and I've got to get back to work now, speak later on to help people out if needed


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    Okay, have fun!

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    (Original post by Felix Felicis)
    Ohou We all remember that Emma girl's interview blunder Irrespective, she would get it
    Haha - that interview seemed to be so unrealistic, I guess it's to get people to apply

    She would - but I've just noticed your sig.. Thanks for that
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    (Original post by L'Evil Fish)
    I have a different S1!
    Doesn't matter, you might have to actually use your brain a little, but other than that you should be fine
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    I have come up with a C2 problem that I can't solve:

    11 A geometric progression has first term a and common ratio r. The second term is 6 and the sum to infinity
    is 25.
    (i) Write down two equations in a and r. Show that one possible value of a is 10 and find the other
    possible value of a. Write down the corresponding values of r. [7]

    We are given a2 = 6,  S\infty = 25, and so far, I have worked out:

     ar = 6


     \frac{a}{1-r} = 25

    Where do I go from there? Thanks!
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    new thread lovin
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    (Original post by Choppie)
    I have come up with a C2 problem that I can't solve:

    11 A geometric progression has first term a and common ratio r. The second term is 6 and the sum to infinity
    is 25.
    (i) Write down two equations in a and r. Show that one possible value of a is 10 and find the other
    possible value of a. Write down the corresponding values of r. [7]

    We are given a2 = 6,  S\infty = 25, and so far, I have worked out:

     ar = 6


     \frac{a}{1-r} = 25

    Where do I go from there? Thanks!
    Solve the simultaneous equations.
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    (Original post by justinawe)
    Doesn't matter, you might have to actually use your brain a little, but other than that you should be fine
    Urgh, I'll wait for half term:mmm:
    (Original post by Choppie)
    I have come up with a C2 problem that I can't solve:

    11 A geometric progression has first term a and common ratio r. The second term is 6 and the sum to infinity
    is 25.
    (i) Write down two equations in a and r. Show that one possible value of a is 10 and find the other
    possible value of a. Write down the corresponding values of r. [7]

    We are given a2 = 6,  S\infty = 25, and so far, I have worked out:

     ar = 6


     \frac{a}{1-r} = 25

    Where do I go from there? Thanks!
    Simultaneous equations!

    a = 25 - 25r

    (25 - 25r)/(1-r)=25
    Etc
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    (Original post by L'Evil Fish)
    .
    Special helper huh? I like the sound of that :smug:
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    Does anyone else find S1 considerably harder than C1/C2? :eek:
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    (Original post by joostan)
    Special helper huh? I like the sound of that :smug:
    :lol: I'm glad:mmm:
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    m1 mechanics help

    "in two consecutive seconds, a car travels through 20m and 15m respectively. The car is travelling with uniform deceleration."

    i) find the speed of the car at the start of the 2 seconds and its deceleration.

    Okay, i know it involes simultaneous equations but in the mark scheme they got the equations

    20=u + \frac{1}{2} a by using u=u ,t=1 ,s=20 and a=a. I get this part.

    But then they go on to do u=u, t=2 ,s=35, a=a to get 35=2u + 2a

    okay , this is all good but why cant you take u=u, s=15 ,t=1 , a=ato form the second equation, thanks
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    (Original post by Satanel)
    Does anyone else find S1 considerably harder than C1/C2? :eek:
    Harder, not really, but incredibly tedious, yep
    Most of what you need's in the formula book.
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    Good luck to everyone doing C1 and M1 tomorrow
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    Has anyone got a prediction paper they can post for C1?
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    (Original post by upthegunners)
    m1 mechanics help

    "in two consecutive seconds, a car travels through 20m and 15m respectively. The car is travelling with uniform deceleration."

    i) find the speed of the car at the start of the 2 seconds and its deceleration.

    Okay, i know it involes simultaneous equations but in the mark scheme they got the equations

    20=u + \frac{1}{2} a by using u=u ,t=1 ,s=20 and a=a. I get this part.

    But then they go on to do u=u, t=2 ,s=35, a=a to get 35=2u + 2a

    okay , this is all good but why cant you take u=u, s=15 ,t=1 , a=ato form the second equation, thanks
    Because the u would be different.
 
 
 
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