Question

find the value of | 5 2 |
| 0 -1 |​

Answer 1

solution:

5. 2. = 5×(-1) - 2×0 = -5 -0 = -5

0. -1

answer -5

Answer 2

$\displaystyle\begin{vmatrix} 5 & 2 \\ 0 & - 1 \end{vmatrix} = - 5$

Given :

$\displaystyle\begin{vmatrix} 5 & 2 \\ 0 & - 1 \end{vmatrix}$

To find :

The value of determinant

Solution :

Step 1 of 2 :

Write down the given determinant

Here the given determinant is

$\displaystyle\begin{vmatrix} 5 & 2 \\ 0 & - 1 \end{vmatrix}$

Step 2 of 2 :

Find the value of the determinant

$\displaystyle\begin{vmatrix} 5 & 2 \\ 0 & - 1 \end{vmatrix}$

$\displaystyle \sf{ = (5 \times - 1) - (0 \times 2) }$

$\displaystyle \sf{ = - 5 - 0}$

$\displaystyle \sf{ = - 5}$