Best Answer

Infinity is a concept, not an actual number.

Someone may say the number of stars is infinite, or that the number of fractions between 0 and 1 is infinite, or that the number of even numbers is infinite. But these are not things that can be subtracted.

User Avatar

Wiki User

โˆ™ 2013-03-20 21:26:11
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: Why is infinity minus infinity undefined?
Write your answer...
Still have questions?
magnify glass
Related questions

What is 1 minus infinity?

Any specific number minus infinity is -∞ Note if you try to subtract infinity from infinity, the answer is undefined - because infinity is a "cardinality" rather than a specific number.

Which is greater infinity or undefined?

both are equal... infinity is the representation of undefined.

What is zero minus infinity?

minus infinity

What is the math sign for undefined?

The mathematical symbol for "undefined" is the infinity symbol.

Why does zero to a negative power yield infinity rather than undefined?

It IS undefined.

What is the value of log 0?

Value of log 0 is negative infinity (undefined). Because no power can give an answer of zero. it is in fact undefined but written as negative infinity for symbolizing. Otherwise undefined and infinity are two different things.

What is infinity minus one?


Do exponential functions have horizontal asymptotes?

Yes, to the left (towards minus infinity).Yes, to the left (towards minus infinity).Yes, to the left (towards minus infinity).Yes, to the left (towards minus infinity).

What is 9 divided by 2 minus 2?

2-2+0 therefore 9 /0 = infinity - undefined or 9/2 = 4.5 - 2 = 2.5

What do you call the number if the dinominator is zero?

undefined (infinity)

What is the limit of infinity over zero?

infinity? Infinity over zero is undefined, or complex infinity depending on numbers you are including in your number system.

Are undefined numbers real numbers?

By its very name .. it is UNDEFINED. Even in the Extended Real Number set containing +-infinity these elements are UNDEFINED.

People also asked