How to solve linear equation in matrix form if determinat is zero

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SUMMARY

To solve a linear equation in matrix form when the determinant is zero, it is essential to understand that the system represented by Ax = y does not have a unique solution. When the determinant of matrix A is zero, it indicates that the system may either have no solutions or an infinite number of solutions, contingent on the relationship between A and y. This fundamental concept is critical for analyzing systems of equations in linear algebra.

PREREQUISITES
  • Understanding of linear algebra concepts, specifically matrix operations.
  • Familiarity with determinants and their implications in systems of equations.
  • Knowledge of the relationship between matrices and linear transformations.
  • Basic skills in solving systems of equations, including Gaussian elimination.
NEXT STEPS
  • Study the implications of a zero determinant in linear systems.
  • Learn about the Rank-Nullity Theorem and its application to systems of equations.
  • Explore methods for determining the number of solutions in underdetermined systems.
  • Investigate the use of parametric solutions for systems with infinite solutions.
USEFUL FOR

Students and professionals in mathematics, particularly those focusing on linear algebra, engineers dealing with systems of equations, and anyone interested in advanced problem-solving techniques in mathematical contexts.

himanshu@iitp
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please help me to solve linear equation in matrix form if determinant is zero
 
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himanshu@iitp said:
please help me to solve linear equation in matrix form if determinant is zero

Welcome to the PF. Please tell us more about your question, and what you have learned so far about systems of equations and how the determinant is used in the solution. What can you say about the system of equations if the determinant is zero?
 
In general, if Ax= y and the determinant of A is 0, there is not a single solution. There may be NO solution of an infinite number of solutions, depending upon both A and y.
 

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