Made Examination №3 math RFEI 3 course.
Tasks in this work:
1. Find the rank of the matrix
2. Solve the matrix equation
3. Solve the system of equations by Gauss by Cramer's rule and matrix method
4. Find the fundamental system of solutions
5. Determine whether the productive matrix
6. Find the length of the vector and its direction cosines
etc. all 15 jobs
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