PLANTILLA RESUMEN
Enviado por crislyvall • 13 de Marzo de 2018 • Ensayo • 490 Palabras (2 Páginas) • 133 Visitas
5. Determine el producto cruz 𝑢 × 𝑣 sabiendo que:
a ). 𝑢 = 10𝑖 + 7𝑗 − 3𝑘; 𝑣 = −3𝑖 + 4𝑗 − 3𝑘
b). 𝑢 = 𝑖 + 𝑗 + 𝑘; 𝑣 = 𝑖 + 𝑗 – 𝑘
5. a. u= 10i + 7j – 3k v= -3i + 4j – 3k
𝑢⃑ 𝑣 [pic 1]
i-j+k[pic 2][pic 3][pic 4]
[(7)(−3) − (4)(−3)] - [(1) (−3) − (−3) (−3)] [(1) (4) − (−3) (7)] ⃑
9i + 39 j+ 61𝑘 ⃑
<-9, 39, 61 ˃
b. u= ai + bj + ck v= ai + bj – ck
𝑢 ⃑ 𝑣 = [pic 5]
i+j-k[pic 6][pic 7][pic 8]
(-bc – bc) – (-ac – ac) + (ab – ab) ⃑
-2bc + 2ac + 0𝑘 ⃑
< -2, 2, 0˃
2. Dada la matriz A= [pic 9]
[pic 10]
[pic 11]
[pic 12]
- F2 2 0 3
2F1 -2 4 -8[pic 13]
0 4 -5 F2
F3-F1
- 1 1 5
-1 2 -4[pic 14]
0 3 1 F3
F3-F1
1.4F3-3F2
0 12 4
0 - 12 15[pic 15]
0 0 19 F3[pic 16][pic 17]
[pic 18]
[pic 19]
[pic 20]
[pic 21]
= [pic 24][pic 25][pic 22][pic 23]
[pic 26]
[pic 27]
[pic 28]
A2= ES LA RESPUESTA[pic 29]
[pic 30]
[pic 31]
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