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Math Help - Limits involving products of infinty and zero.

  1. #1
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    Limits involving products of infinty and zero.

    Hi guys, i am pretty sure my questions are very basic but i don't know the answer to them..
    1: minus infinity times 0 equals to = ????
    2: 0 times infinity equals to = ???
    3: infinity times negative infinity equals to = ???

    thank you for your help....
    Last edited by mr fantastic; December 4th 2011 at 05:52 PM. Reason: Re-titled.
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  2. #2
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    Re: 3 basic questions again.. :/

    Quote Originally Posted by nappysnake View Post
    Hi guys, i am pretty sure my questions are very basic but i don't know the answer to them..
    1: minus infinity times 0 equals to = ????
    2: 0 times infinity equals to = ???
    3: infinity times negative infinity equals to = ???

    thank you for your help....
    (1) and (2) are indeterminate forms.

    (3) (an unbounded positive quantity)(an unbounded negative quantity) = an unbounded negative quantity
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    Re: 3 basic questions again.. :/

    awesome, thanks! )
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