Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 2024-05-08 10:52:40

mathxyz
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From: Brooklyn, NY
Registered: 2024-02-24
Posts: 1,053

Infinity • Infinity

Why does ∞ • ∞ = indeterminate form?

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#2 2024-05-09 05:44:27

Bob
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Registered: 2010-06-20
Posts: 10,627

Re: Infinity • Infinity

Is that dot for multiply,?

If so, shouldn't this be infinity.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#3 2024-05-09 07:41:43

mathxyz
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From: Brooklyn, NY
Registered: 2024-02-24
Posts: 1,053

Re: Infinity • Infinity

Bob wrote:

Is that dot for multiply,?

If so, shouldn't this be infinity.

Bob

Yes, the dot shows multiplication.

Infinity times infinity is more infinity is what you are saying.

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#4 2024-05-09 07:50:48

Bob
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Registered: 2010-06-20
Posts: 10,627

Re: Infinity • Infinity

Yes although a purist might object to the word 'more'.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#5 2024-05-09 07:54:22

mathxyz
Member
From: Brooklyn, NY
Registered: 2024-02-24
Posts: 1,053

Re: Infinity • Infinity

Bob wrote:

Yes although a purist might object to the word 'more'.

Bob

It's time for the purist to become a little dirty.

LOL

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