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SpiralFlex

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  • J
    I notice you answer many maths problems, could you perhaps help me please with a sets question?
    let S=(a,b,c,d,e,f,g,h,i,j) be the set consisting of the first ten letters of the alphabet.
    i) How many subsets of S contain at least three letters?
    ii) How many subsets with at least three letters do not contain any vowels?
    iii) How many subsets with at least three letters do not contain any vowels but do contain the letter "b"?

    Please help me!
    K
    After a while you just get sick of studying and the nerves start to disappear a little. hahaha you really are a lucky duck! but seriously, wow that's good :D
    K
    lol tell me about it. I'm cramming religion. I haven't studied at all (not joking). Left it to today...probably not the best plan lol. But bio went well! :)
    brent012
    Got weird sleeping habits during the holidays lol. Havent had to go to uni early recently so its been alright haha.
    E
    Hehe..Not in 2u. I COMPLETELY screwed that up. I'm just hoping I'm somewhere near the top 20 :(.

    You should study!!! I'll leave you alone so you can focus now :).
    E
    I still remember the day before my English trials. Easily the scariest moment in my life.

    I still have to go to school on Monday :(. Which means getting marks back...oh gosh...
    E
    Yes. I'm taking advantage of this little 4 day break I get by catching up on HIMYM, aGOT and anything other television show/movie that I can cram in.
    I feel so drained out. I'm just glad it's over.
    How's studying for you?
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