foxsboris.naumov1994
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Posts posted by foxsboris.naumov1994
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The answers is b) ab≠1, but I have no clue how to get to that answer... Can someone help me?
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Linear Algebra Conditions
in Homework Help
Posted · Edited by Phi for All
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Well here is the answer SNIP gave me: this can easily be done with determinants. If a square matrix's determinant does not equal zero, then that square matrix will have an inverse hence having a unique solution. Since this is a 2x2 matrix, just compute the determinant with the condition that it cannot equal zero: