Question

construa as matrizes
a) A=(aij)1x3 tal que aij= 2i-j
b) B=(aij)2x3 tal que aij=2i+j

Answer 1

A= [a11 a12 a13] = [2.1-1 2.1-2 2.1-3] = [1 0 -1]

B= | a11 a12 a13 | = | 2.1+1 2.1+2 2.1+3 | = | 3 4 5 |
| a21 a22 a23 | = | 2.2+1 2.2+2 2.2+3 | = | 5 6 7 |