Trace of a matrix
Let A=[aij] nxn is a square matrix of order n, then the sum of diagonal elements is called the trace of a matrix which is denoted by tr(A). tr(A) = a11 + a22 + a33+ ……….+ ann
System of Linear Equations
System of Linear Equations: In mathematics, a system of linear equations, also known as a linear system, consists of one or more equations that are linear and involve the same set of variables. For instance, a linear system involving three variables corresponds to a set of planes. The solution to this system is the point at which all the equations are simultaneously satisfied, representing the intersection of these planes.
This article will explain what a system of linear equations is, how to solve them using different methods, and provide examples to help you understand.
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