DETERMINANT OF: | 1 3 | | 2 4 |
- 4
- 2
- -2
- 6
Explanation
To find the determinant of a 2x2 matrix:
Matrix:
| a b |
| c d |
Formula:
Determinant = (a × d) − (b × c)
---
Given Matrix:
| 1 3 |
| 2 4 |
Step-by-step:
- a = 1, b = 3,
- c = 2, d = 4
Apply the formula:
= (1 × 4) − (3 × 2)
= 4 − 6
= −2
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