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15-09-2017
Mathematics

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Evaluate the determinant for the following matrix:

Evaluate the determinant for the following matrix class=

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Edufirst Edufirst

15-09-2017

The determinat of

| a     b |
|           |
|c      d |

is: a*d - b*c

So the determinant of:

|3    -5 |
|         |
|1    1 |

is 3 * 1 - 1 * (-5) = 3 + 5 = 8

Answer: option D. 8

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