Álgebra/Tema 5 : Combinatoria
JG_A1_23 Combinatorias M (L11)
En una fiesta hay «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»n«/mi»«/math» personas. Si todos se saludan con un apretón de manos, ¿cuántos apretones de mano ocurren? ]]>
1.0000000
0.3333333
0
0
#sol
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