2 articles trouvés pour ce sujet.
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1 + 3 + 3^2 ...+3^(n-1) = 3^n - 1/2 |
2012-01-27 |
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Vicki pose la question :
I am trying to find out how to do show how this proof was worked.
Here is the end result 1 + 3 + 3^2 ...+3^(n-1) = 3^n - 1/2
This equation was used to find the number of white triangles in the Sierpinski Triangle
Walter Whiteley lui répond. |
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Triangles within triangles |
2009-02-24 |
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Mari pose la question :
a large shaded triangle changes each day with a white triangle appearing
in the center of each shaded one. If this pattern continues, how many white
triangles will be there on the 6th day? On the 6th day, what fraction of
the large outer triangle will be white?THANKS!
Robert Dawson lui répond. |
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