C=2 4 6 3 6 9 4 8 12 find the determinant and inverse of c

The determinant of C is zero and does not have inverse.

Step-by-step explanation:

Let , since it is a matrix with 3 rows and 3 columns, we can determine its determinant by the Sarrus' rule:

Since the determinant of C is equal to zero, then we conclude that C does not have an inverse according to the following definition of inverse matrix. That is:

(1)

Where is the adjugate matrix of C, defined as the transpose of the cofactor matrix of C.

The result of this expression is undefined due to the determinant.  

b

step-by-step explanation:

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