Question

What is the value of the determinant? |1 7| |0 -3|

Answer 1

Answer:

-3

Step-by-step explanation:

Answer 2

Answer:

- 3

Step-by-step explanation:

Given the 2 x 2 matrix $\left[\begin{array}{ccc}ab\\cd\\\end{array}\right]$

Then the determinant = ad - bc

Hence for $\left[\begin{array}{ccc}1&7\\0&-3\\\end{array}\right]$

determinant = (1 × - 3) - (7 × 0) = - 3 - 0 = - 3