Determine whether the following matrices are inverse matrices of one another
How to do this please help​

9514 1404 393

  they are not

Step-by-step explanation:

The inverse matrix is the transpose of the cofactor matrix, divided by the determinant.

The cofactor matrix for a 2×2 matrix is ...

The transpose of this will have the off-diagonal terms swapped, so the inverse matrix is ...

We see that the second matrix is the transpose of the cofactor matrix, but the determinant is (5)(2)-(3)(4) = -2, so there has clearly been no division by the determinant. The actual inverse matrix of the first one shown is ...

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You can compute the matrix product to see if you get an identity matrix. Here, the upper left term in the product is ...

  (5)(2) +(4)(-3) = -2 . . . . . not 1, so the product matrix is not an identity matrix

The matrices are not inverses.

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

grab rope, tie a loop-de-loop, put it around ur neck, now jump while its tied to a high place. now your shoes are cool.

step-by-step explanation: