Question

como calcular essas matrizes

A=(Aij)2x3,emAij=5i-3j

A=(Aij)2x3,emAij=4i+5j

A=(Aij)3x3,emAij=2i+3j

A=(Aij)3x2,emAij=4i+2j

Answer 1

Olá,

na 1a, a matriz genérica é.. $A= \left(\begin{array}{ccc}a_{11}&a_{12}&a_{13}\\a_{21}&a_{22}&a_{23}\\\end{array}\right)\\\\ Aij=5i-3j\\\\ A= \left(\begin{array}{ccc}5\times1-3\times1&5\times1-3\times2&5\times1-3\times3\\5\times2-3\times1&5\times2-3\times2&5\times2-3\times3\\\end{array}\right)\\\\ \boxed{A= \left(\begin{array}{ccc}2&-1&-4\\7&4&1\\\end{array}\right)}$

Tenha ótimos estudos ;D