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by Squnts on January 28th, 2007

Squnts

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What is: 2 divided by 0?

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Answers. 35 helpful answers below.

  • by EL1 2 on January 28th, 2007

    EL1 2

    It is undefined. Mathematics if broken when you attempt to divide by zero. Consider the limit of 2/x as x approaches zero.

    2/2 = 1
    2/1 = 2
    2/.5 = 4
    2/.1 = 20
    2/.01 = 200
    2/.0001 = 2000

    Now imagine 2/.0000000000000000000000...01. It would be infinitely large. So you might think 2/0 is infinity...

    but now approach it from below:
    2/(-1) = -2
    2/(-.01) = -200
    etc.

    So you might be temped to think it is negative infinity.

    Since it cannot be both negative infinity and positive infinity, it is undefined.

    I hope that helps to clarify it.

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  • by Engeltje on January 28th, 2007

    Engeltje

    Is this a trick or a riddle?

    Or is it meant to be a simple answer, like:

    If I have two dollars but I have no people to share this money with, it's all mine and I'll still have my two dollars.

    So, 2 divided by zero is two.

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  • by Sofawall on January 28th, 2009

    Sofawall

    Avatar
    a=b/c
    Multiply both sides by b
    a*c=b

    Nice and simple, right?
    Lets put 0 in for c, and 2 in for b.
    a=2/0
    a*0=2

    Whoops! NOTHING multiplied by 0 will give 2. Therefore, anything divided by 0 is undefined, as it cannot be done.

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  • by Kumbaya on February 11th, 2007

    Kumbaya

    Undefined. You can't divide by zero.
    Imagine this:
    You are in a shop, and you have 1.000$, and in the shop they only sell 1 kind of items.
    Imagine that this item costs 1.000$, so you could buy 1 item.
    Imagine that this item costs 500$, so you could buy 2 items.
    Imagine this item costs 100$, so you could buy 10 items.
    And so on.
    The result would be this
    COST ITEMS YOU CAN BUY
    1.000$ 1
    500$ 2
    100$ 10
    10$ 100
    1$ 1000

    Imagine that this item is free, 0 cost. That would mean you could buy infinite items, which isn't really possible.
    So repeat: "You cannot divide by 0"

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  • by LauGhOutLouDx3 on February 11th, 2007

    LauGhOutLouDx3

    Undefined.

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  • by maritso on February 11th, 2007

    maritso

    You CANNOT divide any number with ZERO.Mathematicians made that rule.

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  • by -Ben 10- on January 28th, 2007

    -Ben 10-

    mathematical error

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  • by POP Fan on November 11th, 2009

    POP Fan

    It's infinity. I have a proof for it, but it's too long for me to bother typing in full unless anybody is severly interested. I'll give a quick summary though:

    2/0 = ?
    2/0^-1 = ?

    2/0^-1 = 1/(2/0)

    1/(2/0) = 0/2

    0/2 = 0

    So 2/0 must be infinity because the only number you could divide one by a get zero is infinity.

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  • by Outta-here on January 28th, 2009

    Outta-here

    Chuck Norris

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  • by Tinkerbell on November 25th, 2007

    Tinkerbell

    Anything divided by zero is undefined. It makes no sense.

    If you were to take 2/x and let x approach 0 the function will diverge infinitely. Its limit is infinity.

    If you accept that a/0 is definable you can get all sorts of crazy (and incorrect) results.

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  • by DownOnMyLuck on February 11th, 2007

    DownOnMyLuck

    I learned in school anything divided by zero is zero, anything multiplied by zero is zero, and any number to the power of zero is 1. Don't ask why, I only got 60 in that class!

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  • by Halskiisaklink on February 11th, 2007

    Halskiisaklink

    If you divide two by a progressively smaller negative (-1, -0.5, etc.), you get a progressively larger negative number (-2, -4, etc.). The same applies to the postives (1, 0.5, etc. 2, 4, etc.) My theory is it's like a big circular loop that comes together at zero, and each end (-/+) cancels each other out, leaving you with a penultimate value of 0. This being said, anything divided by zero is zero.

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  • by PL is on vacation right now on December 9th, 2009

    PL is on vacation right now

    Two.

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  • by mrrw on November 11th, 2009

    mrrw

    2

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  • by Antonella on December 9th, 2009

    Antonella

    Unidentified you can not divide by 0.

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  • by rshah9189 on December 9th, 2009

    rshah9189

    undefined

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  • by 92kenneth on January 31st, 2009

    92kenneth

    infinity is a wrong answer.there is no solution for numbers divided by 0.

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  • by LarryH54 on December 9th, 2009

    LarryH54

    Impossible.

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  • by words o wisdom on January 28th, 2009

    words o wisdom

    I guess you could say that 2/0=2 because if you take it back to primary school days it would have gone something like this....

    You have two apples and you share them between zero, how many apples do you have??? The answer being 2.

    Yes I know it is undefinable, just wanted to put a diff spin on it.

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  • by Tommy_B9195 on March 21st, 2011

    Tommy_B9195

    I like men now!

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  • by Jakub_I on October 23rd, 2011

    Jakub_I

    First way:
    How children learn dividing? 4 candys to 2 children... =2. so 2 candys to 0 chilldren are 0 candys for each child.

    Second way:
    a*b=c
    reversed is c/a=b
    so 2*0=0
    2/0=O
    or c/b=a
    so 2/0=0
    0/0=2
    so it is impossible with this way.

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  • by (^_^) on October 23rd, 2011

    (^_^)

    too divided by 0(love)? =my life

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  • by AbelLam on March 15th, 2011

    AbelLam

    by Anonymous on November 25th, 2007 "2 divided by 0 gives us positive infinity"

    i second that

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  • by D2000 on November 15th, 2010

    D2000

    Undefined. It is not possible to divide something by zero.
    The reason?
    Let's take 24 as an example.
    24/6 is 26 divided into six parts/groups.
    Therefore, 24/6 is 4 (because six groups of four is 24)
    For the same reason, 24/8=3, 24/12=2, 24/24=1, etc.
    BUT...
    If you think about it, it is obviously impossible to divide something into NO PARTS.

    Another way of thinking of it is, dividing is MULTIPLYING in reverse.
    Let's go back to the above example of 24.
    6x4=24, so 24/6=4.
    Same for all of the other examples.
    BUT...
    Zero times any number is ALWAYS ZERO.

    So in conclusion, it is impossible to divide by zero.
    Hope I helped!

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  • by Izalias on August 23rd, 2010

    Izalias

    Ahh division by zero. Not many people understand it.

    --------------Introduction and Multiplying By Zero--------------
    The first thing to realize that is that 0 is not a number, as in, it is not a quantity of something either positive or negative, which means we could assign a letter to 0 and that letter will be Z for Zero.

    Zero, to be precise, is a quantity of nothing. So to multiply by 0 and to divide by 0 is, in effect, resulting in a state of True and Not.

    For example; If we take into account the reversible state of:
    "1 / Z x Z = 1"
    Which would mean that the resultant quantity of:
    "1 / Z"
    Must, when multiplied by Z, equal 1.
    This creates a lot of confusion because there is no number which when Multiplied by 0 equals something.
    Therefore classical logic states that what ever the answer it is NOT a number in the classical sense:
    "1 x Z"
    It is equal to;
    "Not 1"
    Which is the logical equivalent to 0 because Not 1 is not a normal number, If you can imagine a cake multiplied by the amount of cake bakeries open (of which there are none), the result is that you are NOT going to buy a cake at any bakery even though there may be an infinite number of cakes behind those closed doors.
    So there is "Not 1" cake available to you at any bakery.
    If the starting number was 2 it would be "Not 2" and so on.
    This doesn't mean there isn't a Walmart or Tesco open where you could buy a Cake, as long as they aren't bakeries, this is why it is not EQUAL to but the Equivalent of 0 as:
    1 x Z = Not 1
    Which is the equivalent of 0 to a calculator.
    And could be represented in Fraction form as 0/2 (Zero over 2 or Two Zeros).
    But calculators will equal it to 0 because it is looking at just one situational number value, however, Not 1 is not a number and the only numerical value the calculator understands as not a quantity is 0 (Because it is not strictly a number).

    --------------Division by Zero--------------

    Once the Ground work is established in understanding that Multiplication by Zero results in a number that is Not X (Where X equals a number)
    Then we must discuss the nature of Divisions by Zero.

    As already highlighted.
    1 x Z = Not 1
    Therefore
    Not 1 / Z = 1
    Whilst
    1 / Z = True 1

    True 1 can be represented as a fraction, 1/0 (One over Zero or 1 regardless of Zero)
    In numerical terms it would look bigger than any number of infinite strings and hold all charges conceivable, even (paradoxically) negating ones. This is a number so large that when multiplied by 0 it would equal it's original divided number in this case.
    1 / Z = True 1
    True 1 x Z = 1

    The logical equivalent to 2 / 0 would be, imagine you have 2 Cakes and you have a party, the cakes are to be divided up amongst the guests and you are not allowed to have a single piece.
    2 / X = ???
    Nobody shows up to the party (how depressing)
    2 / Z = True 2
    Enjoy your 2 Cakes which you can now eat as the party is over.

    The same goes for a scenario with hunger levels.
    Imagine the same Cakes, and you have 100 Guests (Very popular aren't you) yet all of your guests aren't hungry.
    2 / (100 x 0%) = 2 / Not 100 ≍ 2 / 0 = True 2
    Enjoy your 2 Cakes which you can now eat as the party is over.
    ----------Conclusion-----------
    So the thing that can be learned from this is that, when you are dividing by zero, all of your guests can have their cake and you get to eat it.

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  • by DA BEN DAN yanggui zi on August 23rd, 2010

    DA BEN DAN yanggui zi

    it is undefined or infinity.....

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  • by staffie on February 11th, 2007

    staffie

    i would say the answer was 2 because if you have 2 and divide it by 0 then you have still got 2

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  • by Muff on February 11th, 2007

    Muff

    2/0 is Undefined.

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  • by Peetee on November 25th, 2007

    Peetee

    Plus or minus infinity and therefore undefined.

    Assume a is a positive, finite number.
    Find limit of a/x as x tends to zero. If x tends to zero from the positive side, we get a/ very small number = very large number until a/0+ = infinity. As x tends to 0 from the negative side, we get a/ very small negative number = very large negative number so a/0- = negative infinity. Since we can't say that negative infinity = positive infinity, we have to say the answer is undefined.

    In the design of electronic circuits we can have a certain type called amplifiers. Amplifier circuits take an input, multiply it to get an amplified output ( eg 3x, 10x, 100x etc ), called the gain.
    In certain cases, we can design an amplifier that has infinite gain at a certain frequency. In such a case, an output is obtained even though we provide no input and this circuit is called an oscillator. In the real world, we are probably just making a really large gain amplifier (not infinity) and the input signal is probably just a really small signal (not zero) from the random vibrations of electrons but it is easier to design and deal with if we use numbers like zero and infinity to describe the behaviour.

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  • by Rsam12 on February 18th, 2008

    Rsam12

    Brahmagupta man who found zero said 2/0 is 0. Mahavira said 2/0 is 2. Today we say undefinable (another way of saying dunno).

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  • by Anonymous on November 25th, 2007

    Anonymous

    2 divided by 0 gives us positive infinity

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  • by chinnu on November 25th, 2007

    chinnu

    Undetermined

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  • by Tamilze on February 11th, 2007

    Tamilze

    2 divided by 0 is undefined which is used in trigonometry . It is used in graphing tangent curves on a Unit Circle graph, where the undefined is represented as an asymptote.

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  • by MITGearHead on February 11th, 2007

    MITGearHead

    Undefined is your best answer, and that probably isn't very useful to you.

    Trotskyist is wrong. And his "theory" isn't a theory. Mathematics is a construct that helps us describe the real world. It is not some physical experiment being performed.

    By the way, what is a "penultimate value?" I think Trotsky has some vocabulary problems.

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  • by ev149 on May 28th, 2010

    ev149

    NaN

    No real number multiplied by zero will be a nonzero number. For example, 4/2 is 2, and when you multiply the denominator by the solution you get the numerator. Now, let's say 4/0 is 0 - 0 * 0 does not equal four, so it's wrong. Nothing multiplied by the denominator will result in 4.

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