Question
7) [} -5 6 0 ]cdot [3 -1]
Solution
4.2
(226 Votos)
Lucas
Profissional · Tutor por 6 anos
Resposta
To multiply a vector by a matrix, we need to ensure that the dimensions are compatible. The given vector is a 3x1 column vector, and the matrix is a 1x2 row vector. To perform the multiplication, we need to take the dot product of the vector with each column of the matrix.Let's denote the vector as
and the matrix as
.The dot product of
with the first column of
is:
The dot product of
with the second column of
is:
Therefore, the result of the multiplication is:
So, the final answer is: