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  1. I

    Probability :(

    *hails* thanks again :D :D
  2. I

    Probability :(

    LOL, thats what the answers say. Must be a typo then. But could you tell me how to work it out please? =\
  3. I

    Arc length or straight distance?

    Hey guys (again) is this Q asking for the arc length or straight distance? & how would i do this Q? Please and thank you! you guys are life savers :D Q: a sector OAB of a circle centre O, r=20cm, & included angle 2rad is folded to form a cone by placing A against B. what is the shortest distance...
  4. I

    Strange Differentiations

    Q: Find d/dx of ln [(Sinx)^x] A: lnSinx + xcotx Hmm, i tried using substitution for (Sinx)^x as a^x but i keep getting +cosx instead of xcotx...Please help >_<! Your efforts are much appreciated. <3
  5. I

    Probability :(

    Hey guys, I REALLY suck at probability and i was wondering if anyone could help me with this Q: In a certain strain of plants, probability of seeds producing pink flowers is 0.25. Determine the least no. of seeds that must be planted to give a probability of pink flowers which exceeds 0.99...
  6. I

    Arithmetic and Geometric Mean ><

    Hey guys, my teacher gave me the formula for AP mean (b= [a+c] / 2) but i couldnt apply it to the Q: Find AP Mean of 5&51 (Ans: 287). I also dont know the formula for GP mean. Please help? and thank you :D
  7. I

    Probability symbols?

    Thanks guys!! :love: Very helpful indeed (Y) - but i guess i need to go learn some simple probability TT_TT
  8. I

    Conditions for equations O_O

    Wow, you guys are awesome and awesomely smart too.. :love: Thanks guys for all the help! Very helpful indeed (Y)
  9. I

    Conditions for equations O_O

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="ProgId" content="Word.Document"><meta name="Generator" content="Microsoft Word 12"><meta name="Originator" content="Microsoft Word 12"><link rel="File-List"...
  10. I

    Probability symbols?

    Hopefully someone can help me decipher this! Q: Given that P(A)= 4/9, P(B)=2/9 & P(AB)= 1/9, find P(A<!--[if gte mso 9]><xml> <u1:WordDocument> <u1:View>Normal</u1:View> <u1:Zoom>0</u1:Zoom> <u1:TrackMoves/> <u1:TrackFormatting/> <u1:PunctuationKerning/> <u1:ValidateAgainstSchemas/>...
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