Question

Preciso muito de ajuda

Answer 1

Resposta:

1) A = [1 2 -1 0 4 3] B = [5 1 3 -2 0 2] C = [-6 -3 0 1 2 4]

x + A = (B + C)²

x + A = [5 - 6 1 - 3 3 + 0 - 2 + 1 0 + 2 2 + 4]²

x + A = [-1 -2 3 -1 2 6]²

x + [1 2 -1 0 4 3] = [1 4 9 1 4 36]

x = [1 4 9 1 4 36] - [1 2 -1 0 4 3]

x = [1-1 4-2 9-(-1) 1-0 4-4 36-3]

x = [0 2 10 1 0 33]

2) x = 5 y = 4 z = 3

[xz y z] + [xy yz 4] = [35 16 7]

• 7 - 4 = 3. então, z = 3

[x.3 y 3] + [xy y.3 4] = [35 16 7]

• y + 3y = 16
• 4y = 16
• y = 16/4
• y = 4

[3x 4 3] + [4x 12 4] = [35 16 7]

• 3x + 4x = 35
• 7x = 35
• x = 35/7
• x = 5

3) x = (-6, 2] y = 1

[-2y -1 x² 2] + [y 1 4x-12 -1] = [1 0 0 1]

[-2y+y -1+1 x²+4x-12 2-1)] = [1 0 0 1]

[y 0 x²+4x-12 1] = [1 0 0 1]

- 4 +- raiz de 4²-4.1.(-12)/2

- 4 +- raiz de 16 + 48/2

- 4 +- raiz de 64/2

- 4 +- 8/2

- 4 - 8/2 = -12/2 = -6

- 4 + 8/2 = 4/2 = 2