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Howard K. Fehr's notes
저자:
Doug Kuhlmann
A readable if not perfect pdf copy of the section from Fehr that describes this technique. (1951) Fehr was head of the Teaching of Mathematics dept in Teacher's College Columbia.
Fehr_1951_ComplexGraphs.pdf
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Proof of a Rhombus by Construction and Deduction
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Transforming sin
AA similarity theorem - ST
Zlati rez, binarno, PI, TAU
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