brigade Posted January 22, 2006 Report Share Posted January 22, 2006 can we multiply (infinity)*0?if we can, wat will be the answer? Quote Link to comment Share on other sites More sharing options...
Tormod Posted January 22, 2006 Report Share Posted January 22, 2006 Zero. Anything you multiply with zero becomes zero. Quote Link to comment Share on other sites More sharing options...
kamil Posted January 23, 2006 Report Share Posted January 23, 2006 http://hypography.com/forums/physics-mathematics/4898-dividing-zero.html I suggest u read this discusion Quote Link to comment Share on other sites More sharing options...
Guadalupe Posted January 23, 2006 Report Share Posted January 23, 2006 Hi! brigade. :) Zero. Anything you multiply with zero becomes zero. I agree with Tormod. :lol: Quote Link to comment Share on other sites More sharing options...
kamil Posted January 23, 2006 Report Share Posted January 23, 2006 I think infinite*0 is undefined. A line of any length has infinite points and each of those points have 0 length(One of Euclid's first defenitions) so 0*infinite can be anyhting. beause a line of 33 length or 23 length has infinite amount of points having zero length each. I already started a thread concerning this entitled 'deividing by zero':http://hypography.com/forums/physics-mathematics/4898-dividing-zero.html Quote Link to comment Share on other sites More sharing options...
GAHD Posted January 23, 2006 Report Share Posted January 23, 2006 can we multiply (infinity)*0?if we can, wat will be the answer?better question, what's 0 divided by 0? Quote Link to comment Share on other sites More sharing options...
Pyrotex Posted January 23, 2006 Report Share Posted January 23, 2006 better question, what's 0 divided by 0?Well, what answer would you like? :lol: Assume an equation, (X)*(Y) / (X) Assume any value for Y.Now let the value for X be an infinitesimal, e, and let e go to zero. Obviously, the equation as a whole goes to zero/zero. But the ratio always remains Y, no matter how small e gets. Therefore, zero/zero is: Achtung! Verboten! Quote Link to comment Share on other sites More sharing options...
brigade Posted January 23, 2006 Author Report Share Posted January 23, 2006 If (inf)*0=0,then, ((inf)*0)/0=1. How much is the correctness of this eqn? Quote Link to comment Share on other sites More sharing options...
Pyrotex Posted January 23, 2006 Report Share Posted January 23, 2006 If (inf)*0=0,then, ((inf)*0)/0=1. How much is the correctness of this eqn?Hmmm... none at all. (inf)*0 = 0(inf) = 0/0 ---> undefined, meaningless, math melt-down, unusable, without valid interpretation, having no logical existence, non-rational, inconceivable, philosophical null, wrong! BAD! BAD! BAD! :lol: Quote Link to comment Share on other sites More sharing options...
Qfwfq Posted January 25, 2006 Report Share Posted January 25, 2006 Zero. Anything you multiply with zero becomes zero.Tormod! :naughty: Put your fingers here for a good rapping! Multiplying anthing finite by 0 gives zero. Infinity times zero is an indeterminae expression and so is 0/0. 33*0 = 0 and 729*0 = 0 Therefore: 0/0 = 33 and0/0 = 729 also 0/0 = 81427381 and whatever..... For further info, look up the name Guillaume François Antoine Marquis de L'Hôpital. Quote Link to comment Share on other sites More sharing options...
myspip90 Posted January 25, 2006 Report Share Posted January 25, 2006 Isn't it "illegal" to divide with 0? You cannot write 3/0 etc. I think that inf*0=inf/inf, as 1/inf=0 And inf/inf cannot be determined without knowing what the infinities are (i.e. in terms of limits, series, etc. as, then we need to take in account how fast they tend to 0 or inf)So i.e (x^2)/x-->inf if x goes to inf.2x/x = 2, x/(x^2)-->0 if x goes to inf.So I would say that the product does not exist properly. Edit: Forget to say that if 0 is just the number 0, and not i.e. a series tending toward 0, and inf is defined by a series/limit, then inf*0 would be zero, I think. Quote Link to comment Share on other sites More sharing options...
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