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DESCARGA
CAPITULO XXIV

Ecuaciones simultaneas con dos incognitas
Ejercicio 183
Desarrollar las determinantes:
  1. | 4 5 2 3 | =4( 3 ) –2( 5 ) =12–10 =2
  2. | 2 7 3 5 | =2( 5 ) –3( 7 ) =10–21 =–11
  3. | –2 5 4 3 | =–2( 3 ) –4( 5 ) =–6–20 =–26
  4. | 7 9 5 –2 | =7(–2 ) –9( 5 ) =–14–45 =–59
  5. | 5 –3 –2 –8 | =5(–8 ) –(–2 ) (–3 ) =–40–6 =–46
  6. | 9 –11 –3 7 | =9( 7 ) –(–3 ) (–11 ) =63–33 =30
  7. | –15 –1 13 2 | =2(–15 ) –13(–1 ) =–30+13 =–17
  8. | 12 –1 13 –9 | =12(–9 ) –13(–1 ) =–108+13 =–95
  9. | 10 3 17 13 | =10( 13 ) –17( 3 ) =130–51 =79
  10. | –5 –8 –19 –21 | =–5(–21 ) –(–8 ) (–19 ) =105–152 =–47
  11. | 8 2 –3 0 | =8( 0 ) –2(–3 ) =0+6 =6
  12. | 31 –85 –20 43 | =31( 43 ) –(–20 ) (–85 ) =1333–1700 =–367
Categories: Capítulo XXIV