Question

matriz M tal que M=(aij) quadrada de ordem 2 com AIJ = 2i- 3j , qual o valor ?

Answer 1

M=$\left[\begin{array}{ccc}A11&A12\\A21&A22\\\end{array}\right]$

A11=2×1-3×1
A11=-1

A12=2×1-3×2
A12=-4

A21=2×2-3×1
A21=1

A22=2×2-3×2
A22=-2


$\left[\begin{array}{ccc}-1&-4\\1&-2\\\end{array}\right]$