Lösungen/Solutions/
B1S2Ue/Ex9

L = Lektion/ Leçon   -- Sprechstunde / heures de consultation
W = Work / Arbeit / Travail
A  =Anhang/  Annexe / Appendice

Ueb/Ex 1      W

Det[{{4, -2, 3}, {5, -3, 4}, {6, -4, r}}]

Det[{{4, -2, 3}, {5, -3, 4}, {6, -4, 5}}]

g = {4  x - 2  y + 3  z == 1, 5  x - 3  y + 4  z == 2, 
          6  x - 4  y + r z == 3};
Solve[g, {x, y, z}]

g = {4  x - 2  y + 3  z == 1, 5  x - 3  y + 4  z == 2, 
          6  x - 4  y + 5 z == 3};
Solve[g, {x, y, z}]

Ueb/Ex 2      L