12. true/false and explain your answers. a) if a is invertible then det(a)det(a-1) = 1 b) any matrix with a row of all zeros has a determinant of 1. c) if a is a skew symmetric matrix, at = -a, and a has size n x n then a must be singular if n is odd.

Answer with explanation:

(A)

It is given that, A is invertible, That is inverse of matrix exist.

That is,  , is incorrect Statement.

False

(B)

If a Matrix has , either any row or column has all entry equal to Zero, then value of Determinant is equal to 0.

Any matrix with a row of all zeros has a determinant of 1 ,is incorrect Statement.

False

(C)

The Meaning of Singular matrix is that , then Determinant of Singular Matrix is equal to Zero.

For, a n×n , matrix, whether n is Odd or even

So, the statement, If A is a skew symmetric matrix,  ,and A has size n x n then A must be singular if n is odd ,is incorrect Statement.

False

you need to show the graph

step-by-step explanation:

ok so the answer to your question is simple as long as you look at the different dimensions that contain the exemplary letters that combined in the right order give you words that eventually within the 5th dimension will conform and give you the correct answer to your question. hope i , stop looking at this easily, look at it with a spectral view.

step-by-step explanation:

told you