Show that the matrix equation has no solution?

Question

[1 1
1 1]

A = [1 0
0 1]

Answer 1

What's the equation?

If it's [1 1 A= [1 0
1 1] 0 1],

it's because to find the inverse of the first matrix, it's 1/ad-cb [-a c
b -d] and 1*1-1*1 equals 0, and anything over 0 is undefined.

EDIT: Oh I see what you are trying to do. Matrices don't come out nice on Yahoo! Answers.

Answer 2

there is no equation that demands for a solution.

the only equation I see is A = [1 0 0 1]
so what is this ? a row vector called A nothing more nothing less

You ,meean this right ? and the solve A

[1 1 1 1] A = [1 0 0 1]

( T means transposed below )

a solution ( there are more is

A = [ (1,0,0,0)T, (0,0,0,0)T, (0,0,0,0)T,(1,0,0,0)T ]

i am unsure if you understand me so i wont bother to give you all solutions.

Answer 3

Sorry, but you have not provided the equation.
The only thing which is seen is matrix A is a unit matrix.

Answer 4

That first matrix, with 1s in every position, has determinant zero which means that it's NOT invertible.