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Maths question :)

  • 25-04-2012 1:01am
    #1
    Izymunz
    Closed Accounts Posts: 113 ✭✭


    I was wondering if anyone figured out how to do question 8 (a) part ii and (b). I have been staring it at for two hours now!! I just do not know what I have to do, I have tried everything! It's the 2011 SEC sample paper E. Thanks in advance!


Comments

  • #2
    Incompetent
    Registered Users, Registered Users 2 Posts: 442 ✭✭Incompetent


    Izymunz wrote: »
    I was wondering if anyone figured out how to do question 8 (a) part ii and (b). I have been staring it at for two hours now!! I just do not know what I have to do, I have tried everything! It's the 2011 SEC sample paper E. Thanks in advance!


    Is there a copy of that online? I love me some integration problems


  • #3
    finality
    Registered Users, Registered Users 2 Posts: 1,763 ✭✭✭finality


    This is question B. Is it the right one? I can't do A (ii), I remember doing battle with it a few months ago too. Hoping someone will enlighten me on that as well.


  • #4
    BL1993
    Closed Accounts Posts: 341 ✭✭BL1993


    For A (ii), Alpha is a max when the angle CFA is 90 degrees.


  • #5
    Izymunz
    Closed Accounts Posts: 113 ✭✭Izymunz


    I did the exact same thing but it is not working out! I really hate project maths...


  • #6
    Wesc.
    Registered Users, Registered Users 2 Posts: 715 ✭✭✭Wesc.


    Izymunz wrote: »
    I did the exact same thing but it is not working out! I really hate project maths...

    It should work alright, you'll get a right angled triangle with opp length 22 and hypoteneuse length 25, use sin, and voila!


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  • #7
    Incompetent
    Registered Users, Registered Users 2 Posts: 442 ✭✭Incompetent


    Oh, it's not paper 1 :(. I'll show myself out...


  • #8
    Izymunz
    Closed Accounts Posts: 113 ✭✭Izymunz


    Wesc. wrote: »
    It should work alright, you'll get a right angled triangle with opp length 22 and hypoteneuse length 25, use sin, and voila!

    Thanks, I will have a go again!


  • #9
    Izymunz
    Closed Accounts Posts: 113 ✭✭Izymunz


    Incompetent wrote: »
    Oh, it's not paper 1 :(. I'll show myself out...

    Sorry about that! :P


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