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    (Original post by economicss)
    Yeah that's great thanks so much, got it now Yeah if you could post part ii please that would be brill, thank you!
    Again - A weird freakin q

    Now I'm gonna post some q's you better help me lol (no seriously
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    (Original post by Rkai01)
    Again - A weird freakin q

    Now I'm gonna post some q's you better help me lol (no seriously
    Thank you!! Haha okay I will do my best
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    JUST DID AN ADAPTED PAPER!
    Can our paper be as hard as those??
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    (Original post by Rkai01)
    Again - A weird freakin q

    Now I'm gonna post some q's you better help me lol (no seriously
    What did you use to go from -1/2(cosec theta +cot theta) to the final answer please? Checked the formula book but couldn't see anything in there, thanks!
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    How is 8d done tried it but can't remember anything from previous core mods please?
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    (Original post by moonlight123)
    JUST DID AN ADAPTED PAPER!
    Can our paper be as hard as those??
    What is adapted?
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    (Original post by economicss)
    What did you use to go from -1/2(cosec theta +cot theta) to the final answer please? Checked the formula book but couldn't see anything in there, thanks!
    Look where it says integral of cosec, you use the log laws to raise the powers and deduce that cosec plus cot is 1/ tan(1/2x)

    Can you look at my post above for help please?
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    How is first q done. The induction one? I tried writing it in a form of differentials but went awkward.

    Preferably a written solutions with pictures please

    Zacken
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    (Original post by Rkai01)
    Look where it says integral of cosec, you use the log laws to raise the powers and deduce that cosec plus cot is 1/ tan(1/2x)

    Can you look at my post above for help please?
    Thank you damn that question on my list of ones I can't do aswell, will give it another go now
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    (Original post by economicss)
    Thank you damn that question on my list of ones I can't do aswell, will give it another go now
    And the induction q if u can
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    (Original post by Rkai01)
    And the induction q if u can
    I've found the radius, but stuck on how to find the y-coord of the centre!
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    (Original post by economicss)
    I've found the radius, but stuck on how to find the y-coord of the centre!
    That's exactly where I am dude.
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    (Original post by Rkai01)
    That's exactly where I am dude.
    It's probs a circle theorem of some kind but can't think what, will ask my teacher on monday and post his working
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    Struggling with this.
    First 2 pics shows approach 1 and 3rd is second approach

    With 4th pic showing q which is 9b
    oinkk
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    (Original post by Rkai01)
    How is first q done. The induction one? I tried writing it in a form of differentials but went awkward.

    Preferably a written solutions with pictures please

    Zacken
    Assume true for n=k and then differentiate once more and algebra manipulate to show that it's true for n=k+1. If you're stuck then post your solution.
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    (Original post by economicss)
    It's probs a circle theorem of some kind but can't think what, will ask my teacher on monday and post his working
    Wait what did you get for radius? How'd you get it
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    (Original post by Rkai01)
    Wait what did you get for radius? How'd you get it
    2root3, used 2 of the points I already knew with the C2 distance formula on (7,4) and (4, 4+root3) then did (x-x1) squared + (y-y1 squared) with those two coords
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    (Original post by economicss)
    2root3, used 2 of the points I already knew with the C2 distance formula on (7,4) and (4, 4+root3) then did (x-x1) squared + (y-y1 squared) with those two coords
    Ya I got 2root 3 but for distance between 7,4 and 4,4+root3 but why is that length the same?
    This is the logic I put together as to why the centre is what it is but I don't get why distance are the same and hence both are root3 downwards from 4,4 +root3

    EDIT: I don't know why but the bottom triangle might be the same as top
    which is why they got what they got but could be wrong.

    SEE 2 posts below for second pic.

    Confirmation Zacken
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    (Original post by Rkai01)
    Struggling with this.
    First 2 pics shows approach 1 and 3rd is second approach

    With 4th pic showing q which is 9b
    oinkk
    I have not attempted this question yet, but here are my initial thoughts. If this doesn't help then I'll take a look at it tomorrow morning.

    Your second attempt is the right approach.

    You need your argument to just be in one plane, the w-plane. Make z the subject of the transformation, and add 2i to both sides of the transformation to achieve the expression you desire
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