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The sum of a number and its reciprocal
Author:
Roy Wright
Here is a proof without words that the sum of a positive number
and its reciprocal
is always at least 2. (The number
can be changed by dragging the
red point
.)
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Multiplication with Area Models
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Example 4
parabola1
Distance from Point to Center
Distances and Parabolas: IM Geo.6.7
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