text: # Explain the term matrix
  
  Publish On: 2019-02-24
  
  Total Post: 755
  
  # Mjay Jollay
  
  Total Post: 0
  
  ## ANS: Explain the term matrix
  
  The student is already familiar with the system of simultaneous linear equations. For example, the equation
  
  is a system of two linear equations in two unknown (variables) x and y.
  
  The left-hand side of (I) is completely known if we know the coefficients of various equations. We arrange these coefficients in a block as given below.
  
  In this arrangement, the entry [3, 5] in the top horizontal line is called the first row and it indicates the coefficients of x, y of the first equation 3x + 5y = 2, of the system (I). The entries [6, 1] in the second horizontal line is called the second row and it indicates the coefficients of x, y in the equation 6x + y = 3.
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