Question

Escreva a matriz A ( a i j ) 3x4 , sendo a i j = 3 i -2. j

Answer 1

Resposta:

B=

( 1 -1 -3 -5 )

( 4 2 0 -2 )

( 7 6 3 1 )

( 10 8 6 4 )

Explicação passo-a-passo:

ex: A =

1¹¹ 2¹² 3¹³ 4¹⁴ (1/2/3/4.. = a)

5²¹ 6²² 7²³ 8²⁴

9³¹ 10³² 11³³ 12³⁴

A= (a i j)3x4, sendo a i j = 3 i -2.j

aij = 3.i - 2.j

aij = 3.1 - 2.1= 1

aij = 3.1 - 2.2 = -1

aij = 3.1 - 2.3 = -3

aij = 3.1 - 2.4 = -5

aij = 3.2 - 2.1 = 4

aij = 3.2 - 2.2 = 2

aij = 3.2 - 2.3 = 0

aij = 3.2 - 2.4 = -2

aij = 3.3 - 2.1 = 7

**********2.2 = 6

**********2.3 = 3

**********2.4 = 1

aij = 3.4 - 2.1 = 10

**********2.2 = 8

**********2.3 = 6

**********2.4 = 4