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    (Original post by birdjm)
    How many marks do you think I will lose for the last question? I integrated the curve correctly, getting 40pi/ln3. But when calculating the volume of the cone I accidentally used (2-1/ln3) and did not use (2-(2-1/ln3)) for the height, so when I subtracted the 2 volumes, I got (67pi-54(pi)ln3)/ln3.
    i did the same!!very curious how many marks will i lose....
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    Anyone get 31.82 degrees for the angle in the vectors question???
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    (Original post by ASDuh97)
    I put my calculator in degree mode for the population one and got 27 years i think, in radians it wouldv'e been too short of a time wouldn't it?
    I did that mate. Think we are wrong...
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    (Original post by aero-1997)
    Do you guys think i can get an A* if I have 68-C3 67-C4.
    Edexcel have marked your papers already? Impressive.
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    (Original post by birdjm)
    How many marks do you think I will lose for the last question? I integrated the curve correctly, getting 40pi/ln3. But when calculating the volume of the cone I accidentally used (2-1/ln3) and did not use (2-(2-1/ln3)) for the height, so when I subtracted the 2 volumes, I got (67pi-54(pi)ln3)/ln3.
    Three marks I'm thinking: 1 for not getting the correct cone volume. 2 marks for not getting the correct answer..
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    (Original post by Paraphilos)
    :hide:
    100% accurate representation of me during my STEP exam.
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    please could someone show me how they did 3c and how you got the (ln)^2 terms
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    (Original post by monica555)
    When u multiply out the bracket it becomes 9xln3 not 9ln3x so u then divide 18ln3 - 9 by 9ln3 to get 2-1/ln3
    omg i'm so stupid, thank you
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    (Original post by Emmi12345)
    None if you got the right answer. It wasn't imperative that you changed it to 9^x. I personally left it as 3^2x, ended up doing a substitution somewhere along the way and it all worked out fairly quickly and nicely.
    no but i also got the wrong answer and im not sure why or how because i did 3^2x=1/ln3 3^2x
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    67A* 74 100UMS
    Easier then last years i think. The vectors was easy. Volume with cone was in last year so people cant be that surprised.


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    does anyone have pictures of question 5 and 6?? or anyone rmb the what the questions were..
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    How did you get the paper ???? and can you put it in a new thread pls
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    But why doesn't the 8y bit differentiate to -8y? (Not positive?)
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    Anyone get 31.82 degrees for the angle in the vectors question?
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    (Original post by kor97)
    bump for those who couldn't find it
    you know for question 2) does it matter if the dy/dx is 3y-2x/8y-3x ?
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    (Original post by Emmi12345)
    No it's not your fault for picking up on it, haha, you were only trying the defend the person. Well I was temporarily unable to count the words in my French essay at the end of that exam because I was shaking so much after 3hrs of stress... The invigilator came over and was like, "Do you need help counting?" I nearly died. I had a STEP exam right after as well... oh the irony.
    i cry for you
    did they not let you take step first, id have thought that would be the priority
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    (Original post by joanneeve)
    no but i also got the wrong answer and im not sure why or how because i did 3^2x=1/ln3 3^2x
    Correct me if I'm wrong... but how does 3^2x=1/ln3 3^2x?
    ... Or do you mean you integrated it to equal that? Not sure I understand.
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    (Original post by nbofni)
    Anyone get 31.82 degrees for the angle in the vectors question???

    Yes.
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    (Original post by nbofni)
    Anyone get 31.82 degrees for the angle in the vectors question?
    yep!
 
 
 
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