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[Post New]24 Mar 2008 11:52:41 IST
    Subject: Re:Probability, Geometry
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eragon007 (156)

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Olaaa!! Perrrfect answer. 28  [36 rates]
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1)--as the coin is a fair one its probability of getting a head  even after infinite turns  will be 1/2, hence ans is 1/2

2)substitute x=x-2
                  y=y-1
in the eqn of straight lines

3)focus=0,2
  vertex = 0,4    => a = 2
 the general eqn for p'bola is

(y-y')=4a(x-x')
y'=2   x'=0
hence equation is
(y-2)=-8x(as the p'bola opens in the 2nd quadrant)
 
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 this reply: 10 points  (with 2 Olaaa!! Perrrfect answer.   in 2 votes )   [?]
 
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