2000018304 | math4u.vsb.cz

SubArea:

Matrices and determinants

Level:

Project ID:

2000018304

Accepted:

0

Clonable:

0

Easy:

1

Which matrices X and Y make valid both equalities given below?

2 X + Y = (\begin{matrix} 1 & 4 \\ 2 & 0 \end{matrix})

X - Y = (\begin{matrix} 1 & - 1 \\ 1 & 0 \end{matrix})

X = (\begin{matrix} \frac{2}{3} & 1 \\ 1 & 0 \end{matrix})

and

Y = (\begin{matrix} - \frac{1}{3} & 2 \\ 0 & 0 \end{matrix})

X = (\begin{matrix} \frac{2}{3} & 1 \\ 1 & 0 \end{matrix})

and

Y = (\begin{matrix} - \frac{1}{3} & 4 \\ 0 & 0 \end{matrix})

X = (\begin{matrix} \frac{2}{3} & 1 \\ 1 & 0 \end{matrix})

and

Y = (\begin{matrix} \frac{1}{3} & 2 \\ 0 & 0 \end{matrix})

X = (\begin{matrix} \frac{2}{3} & 1 \\ 1 & 1 \end{matrix})

and

Y = (\begin{matrix} - \frac{1}{3} & 4 \\ 0 & 0 \end{matrix})