Question: Let Construct a 4 2 matrix D using only 1 and 0 as entries, such that AD = I 2 . Is it possible

Let


= [1 A = 1 0 1 1 0 1 11


Construct a 4 × 2 matrix D using only 1 and 0 as entries, such that AD = I2. Is it possible that CA = I4 for some 4 × 2 matrix C? Why or why not?

= [1 A = 1 0 1 1 0 1 11

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