| Special Properties of Infinity |
|---|
| ∞ + ∞ = ∞ |
| -∞ + -∞ = -∞ |
| ∞ × ∞ = ∞ |
| -∞ × -∞ = ∞ |
| -∞ × ∞ = -∞ |
| x + ∞ = ∞ |
| x + (-∞) = -∞ |
| x - ∞ = -∞ |
| x - (-∞) = ∞ |
| For x>0 : |
| x × ∞ = ∞ |
| x × (-∞) = -∞ |
| For x<0 : |
| x × ∞ = -∞ |
| x × (-∞) = ∞ |
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