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What is infinity
What is infinity
What is infinity
What is infinity
What is infinity
What is infinity
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What is infinity

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  • 1. What is Infinity?Infinity ...? ... its big ... ... its huge ... ... its tremendously large ...... its extremely humongosly enormous ...... its ... Endless!
  • 2. Infinity is an idea that has no endIn our world, we dont have anything like it.So Just think infinity as an idea that is "endless", or "boundless".Infinity is not a real number It is an idea An idea of something without an end.Infinity cannot be measured.
  • 3. In Geometry a "Line" has infinite length ... it goes in both directions without an end. If it has one end it is called a Ray, and if it has two ends it is called a Line Segment, but that needs extra information to define where the ends are.
  • 4. We can sometimes use infinity like it is a number, but also infinity does not behave like a real number. For example: ∞ + 1 = ∞ Which says that infinity plus one is still equal to infinity. If something is already endless, you can add 1 and it will still be endless. The most important thing about infinity is that: ∞ <x< ∞ Which is mathematical shorthand for "minus infinity is less than any real number, and infinity is greater than any real number"
  • 5. Special Properties of Infinity ∞+∞=∞ -∞ + -∞ = -∞ ∞×∞=∞ -∞ × -∞ = ∞ -∞ × ∞ = -∞Some properties x+∞=∞ x + (-∞) = -∞ x - ∞ = -∞ x - (-∞) = ∞ For x>0 : x×∞=∞ x × (-∞) = -∞ For x<0 : x × ∞ = -∞ x × (-∞) = ∞
  • 6. "Undefined" Operations 0×∞ 0 × -∞ ∞ + -∞Some undefined properties ∞-∞ ∞/∞ ∞0 1∞

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