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    (Original post by bored565)
    I used radians because I'm 90% sure I read in the textbook somewhere that you can't use degrees with sin/cos/tan in calculus.

    I'm pretty sure i got 0.3 something though and I'm confident it was right. Did you use P = 4 and not 4,000?
    I got 0.473 years!
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    (Original post by Beasttty)
    lol you and your teachers are stupid
    Don't think many people struggles around q 7 and 8
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    (Original post by DomRauba)
    Guys, what was the x coordinate , i got 2- 1/ln3
    I got ln(9) - 1/ln( 3)

    And for the height of the cone . 1/ln(3
    )
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    (Original post by Valkyrian)
    I can't remember. I think I got something like root3/2 + 4pi/3 :/ don't know. Anyone else? Obviously we got something similar.

    Hoping my mistakes were a minimal .. need around 97 UMS to counter my terrible c3 exam.
    Yeah the substitution answer was root3/2 + 4pi/3
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    (Original post by talkbiology)
    Rings a bell! for the volume of revolution I got 13pi / ln3, any confirmation?
    You are correct my friend
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    Would the answer for years be in radians or degrees? Wouldn't it depend on the species of animal and how fast they reproduced
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    (Original post by pinksmartiee)
    naah you probably didn't, many people got 32(ln2)^2 somethign something
    Im pretty sure it was a quadratic in ln - 32(ln)^2 - 32ln2 + 12 maybe ?
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    I also got k as 4
    And for the quadratic equation / (x-3) or something, I got a = 2 and b = -5
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    Did anyone else get 7.75 (think that was my answer) for the shortest length on the vector Q?
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    (Original post by DomRauba)
    Guys, what was the x coordinate , i got 2- 1/ln3
    i got this too
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    Barely had enough time to do Q9, I nearly missed it!
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    i'm kind of proud because i struggled a lot with vectors and actually felt i got that one right! but the rest of the paper was terrible.
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    (Original post by MelonKuma)
    I also got k as 4
    And for the quadratic equation / (x-3) or something, I got a = 2 and b = -5
    K=2


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    wasn't y=+-4
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    I got K as 2 - took 4 out of the equation as a factor, however it was still rooted giving 2 as the constant
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    VOTE NOW ON HOW YOU FOUND THIS EXAM!
    Click here: http://www.thestudentroom.co.uk/show....php?t=3407487
    Note: C4 JUNE 2015 UK paper ONLY!
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    (Original post by MelonKuma)
    I got 31.8 degrees as the acute angle on the vector question and 7.46cm as the shortest distance from B to l1.
    same!
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    (Original post by urz13)
    I got K as 2 - took 4 out of the equation as a factor, however it was still rooted giving 2 as the constant
    K is 2.


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    (Original post by urz13)
    Did anyone else get 7.75 (think that was my answer) for the shortest length on the vector Q?
    Yep 👍
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    (Original post by talkbiology)
    Rings a bell! for the volume of revolution I got 13pi / ln3, any confirmation?
    Same
 
 
 
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