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