3. (i) Let e ER and A- (; ). 1 1 2 2 (?). b = Find the condition on e so that there is a solution of Ax = b. (ii) Consider the system of three linear equations 1 1 1 2 1 4 I2 %3D 1 4 10 13 with e E R. Find the condition on e so that there is a solution.

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