Question

construa a matriz A=(aij)3x3, tal que aij=3i-j

Answer 1

A1×1=3•1-1 =2
A1×2=3•1-2=1
A1×3=3•1-3=0

A2×1=3•2-1=5
A2×2=3•2-2=4
A2×3=3•2-3=3

A3×1=3•3-1=8
A3×2=3•3-2=7
A3×3=3•3-3=6