Talk:Binomial theorem: Difference between revisions
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imported>David E. Volk (suggest change in formula for clarity) |
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status is really about 2.5 - 2 for the elementary binomial theorem/formula, and 3 for the Newtonian. [[User:Anthony Argyriou|Anthony Argyriou]] 17:23, 18 July 2007 (CDT) | status is really about 2.5 - 2 for the elementary binomial theorem/formula, and 3 for the Newtonian. [[User:Anthony Argyriou|Anthony Argyriou]] 17:23, 18 July 2007 (CDT) | ||
Revision as of 07:22, 25 September 2007
status is really about 2.5 - 2 for the elementary binomial theorem/formula, and 3 for the Newtonian. Anthony Argyriou 17:23, 18 July 2007 (CDT)
While the definition is strictly true, it seems written backwards, in that if you actually do
the sum for (x+y)^2 the answer you get as the equation is written is y^2 + 2xy + x^2. Of course you can rearrange
to get x^2 + 2xy + y^2. Another way to write it would be
x^(n-k)y^(k), in which case you directly get the answers as shown in the examples.