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Maths Paper one definitions

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  • 03-06-2013 9:59am
    #1
    Leaving Cert Student
    Registered Users Posts: 1,026 ✭✭✭


    Are there anry definitions that can asked for paper 1? I feel like I'm missing something...


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    #2
    LostBoy101
    Registered Users Posts: 2,369 ✭✭✭LostBoy101


    Ordinary or Higher?


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    #3
    Leaving Cert Student
    Registered Users Posts: 1,026 ✭✭✭Leaving Cert Student


    Higher though I am going to be very ignorant and suggest that ordinary is merely a subset of higher?

    and to be even more arrogant... a subset is a venn diagram reference...


    ... jk!!


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    #4
    peekachoo
    Registered Users Posts: 11,971 ✭✭✭✭peekachoo


    Probably just "define an irrational number" I can't think of anything else!


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    #5
    Leaving Cert Student
    Registered Users Posts: 1,026 ✭✭✭Leaving Cert Student


    peekachoo wrote: »
    Probably just "define an irrational number" I can't think of anything else!

    Aye thats all I can think of myself?


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    #6
    LostBoy101
    Registered Users Posts: 2,369 ✭✭✭LostBoy101


    Leaving Cert Student wrote: »
    Higher though I am going to be very ignorant and suggest that ordinary is merely a subset of higher?

    and to be even more arrogant... a subset is a venn diagram reference...


    ... jk!!
    Don't get all smart ass on me now.


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    #7
    11Charlie11
    Registered Users Posts: 941 ✭✭✭11Charlie11


    peekachoo wrote: »
    Probably just "define an irrational number" I can't think of anything else!

    What definition would you give? Like I know how to prove it and construct it :)


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    #8
    ItsCon
    Registered Users Posts: 9 ✭ItsCon


    "Cannot be written in the form A/B when A,B are elements of Z" is the simplest one really


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    #9
    11Charlie11
    Registered Users Posts: 941 ✭✭✭11Charlie11


    ItsCon wrote: »
    "Cannot be written in the form A/B when A,B are elements of Z" is the simplest one really

    That it? :O I was thinking it had to be long with the amount of room they leave in the exam paper!


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    #10
    ItsCon
    Registered Users Posts: 9 ✭ItsCon


    11Charlie11 wrote: »
    That it? :O I was thinking it had to be long with the amount of room they leave in the exam paper!

    Nope that's it! Think they only leave so much room to either confuse people or just in case somebody keeps messing up and has more room to write in.


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    #11
    outnumbered
    Closed Accounts Posts: 1,696 ✭✭✭outnumbered


    How do you construct it?


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    #12
    peekachoo
    Registered Users Posts: 11,971 ✭✭✭✭peekachoo


    outnumbered wrote: »
    How do you construct it?

    root 2; you have a line of 1 unit, and label both ends a + b. Draw a perpendicular line up from b and label it m. Use your compass as measure the length of a-b and draw a circle with b as your centre, where the circle intersects M label it C.
    Draw a line from a-c and that's root 2 :)

    Root 3; start with the same line a-b, this time draw a circle with centre A, and another with centre B (same size- 1 unit)
    Where the two circles intersect above and below, mark off points and label them C + D. You can draw lines from A-C, A-D and B-C, B-D and that's root 3


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    #13
    outnumbered
    Closed Accounts Posts: 1,696 ✭✭✭outnumbered


    peekachoo wrote: »
    root 2; you have a line of 1 unit, and label both ends a + b. Draw a perpendicular line up from b and label it m. Use your compass as measure the length of a-b and draw a circle with b as your centre, where the circle intersects M label it C.
    Draw a line from a-c and that's root 2 :)

    Root 3; start with the same line a-b, this time draw a circle with centre A, and another with centre B (same size- 1 unit)
    Where the two circles intersect above and below, mark off points and label them C + D. You can draw lines from A-C, A-D and B-C, B-D and that's root 3

    Thanks a million :)


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