The determinant of matrix A is 5 and the determinant of matrix B is 40. The determinant of matrix AB is

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Solution

$| A | = 5, | B | = 40$
$| A B | = | A | | B | = 5 \times 40 = 200$

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The determinant of matrix A is 5 and the determinant of matrix B is 40. The determinant of matrix AB is

|A|=5,|B|=40 |AB|=|A||B|=5×40=200

$| A | = 5, | B | = 40$
$| A B | = | A | | B | = 5 \times 40 = 200$