Question

REPRESENTE A MATRIZ, DE ACORDO COM A DEFINIÇÃO DADA: A = (aij)4x1, tal que aij =

√i, se i >j

(i + j). se i ≤ j​

Answer 1

$\Large\boxed{\begin{array}{l}\sf A=(a_{ij})_{4\times1}~aij=\begin{cases}\sf\sqrt{i}~~se~i>j\\\sf i+j~~se~~i\leqslant j\end{cases}\\\sf a_{11}=1+1=2\\\sf a_{21}=\sqrt{2}\\\sf a_{31}=\sqrt{3}\\\sf a_{41}=\sqrt{4}=2\\\sf A=\begin{bmatrix}\sf2\\\sf\sqrt{2}\\\sf\sqrt{3}\\\sf2\end{bmatrix}\end{array}}$