A is a 2x5 matrix with two pivot positions. (a) Does the equation Ax =0 have a nontrivial solution? (b) Does the equation Ax =b have at least one solution for every possible b? (a) Does the equation Ax =0 have a nontrivial solution? O Yes O No (b) Does the equation Ax =b have at least one solution for every possible b? O Yes

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