Question

[[3,6],[8,9]] Find the null space, Inverse, and adjoint (friends only)

Answer 1

Answer:

The (i,j) cofactor Cij of A is defined to be

Cij=(−1)ijdet(Mij),

where Mij is the (i,j) minor matrix obtained from A removing the i-th row and j-th column.

Then consider the n×n matrix C=(Cij), and define the n×n matrix Adj(A)=CT.

The matrix Adj(A) is called the adjoint matrix of A.

When A is invertible, then its inverse can be obtained by the formula

Step-by-step explanation:

Answer 2

Answer:

The null space is in the fourth wall

Step-by-step explanation:

In order to get to the null zone you need to break the sound barrier and enter a new dimension.