Question

b= bij 3×2 tal que bij= j2-i​

Answer 1

Resposta:

B = b11 b12

b21 b22

b31 b32

b11 = 1²-1

b11 = 1-1

b11 = 0

b12 = 2²-1

b12 = 4-1

b12 = 3

b21 = 1²-2

b21 = 1-2

b21 = -1

b22 = 2²-2

b22 = 4-2

b22 = 2

b31 = 1²-3

b31 = 1-3

b31 = -2

b32 = 2²-3

b32 = 4-3

b32 = 1

B = 0 3

-1 2

-2 1