Question

determine a matriz a=(aij)3×3tal que aij=2i-j

Answer 1

a11=2.1-1=2-1=1
a12=2.1-2=2-2=0
a13=2.1-3=2-3=-1
a21=2.2-1=4-1=3
a22=2.2-2=4-2=2
a23=2.2-3=4-3=1
a31=2.3-1=6-1=5
a32=2.3-2=6-2=4
a33=2.3-3=6-3=3