Question: 3. [5 points] IfA = and Cis a 2 x 2 matrix such that (C-1A) -1 = (A~]) then Cequals ([3 21 3 3 21

3. [5 points] IfA = and Cis a 2 x 2

3. [5 points] IfA = and Cis a 2 x 2 matrix such that (C-1A) -1 = (A~]) then Cequals ([3 21 3 3 21 3 2 ()3 2 (4) None of above 4. [5 points] Determine the value(s) of real numbers a and b so that the system of equations: x + 5y =a 2x + by =2 Has infinitely many solutions (A) a=4, b =10 (B) a=6, b=12 (C) a=8, b=14 (D)a=4, b=12 (E) None ofabove

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