How do you find the inverse of $A=$ $((-4, 8), (2, -4))$ ?

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Answer 1 · 2016-02-18T12:47:03

I believe $((-4,8),(2,-4))$ does not have an inverse.

The rows of $A$ are not independent.

Row 2 is simply Row 1 multiplied by $(-1/2)$

Think of this as like being asked to solve
${(k(ax)+k(by)=c_1),(m(ax)+m(by)=c_2):}$
which has no proper solution.

How do you find the inverse of A=A=((-4, 8), (2, -4))((-4, 8), (2, -4))?