Question

Represente a matriz A= (aij) 4x1, tal que aij = i + sen πj/2.

Answer 1

Construir a matriz A = (aij)4x1 | aij = i + sen πj/2

⠀

a11 = 1 + sen π.1/2 = 1 + sen π/2 = 1 + 1 = 2

a21 = 2 + sen π.1/2 = 2 + sen π/2 = 2 + 1 = 3

a31 = 3 + sen π.1/2 = 3 + sen π/2 = 3 + 1 = 4

a41 = 4 + sen π.1/2 = 4 + sen π/2 = 4 + 1 = 5

⠀

Assim:

$A=\begin{bmatrix}a_{11}\\a_{21}\\a_{31}\\a_{41}\end{bmatrix}\\\\A=\begin{bmatrix}2\\3\\4\\5\end{bmatrix}$