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Video tutorials - I.S.C.(CLASS XII) Mathematics: Determinants and Matrices - Matrices (Council for the Indian School Certificate Examinations (CISCE))

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Subject:   Mathematics
Topic:   Determinants and Matrices - Matrices

shaalaa.com | Concept of Matrix, Order of Matrix

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Concept of Matrix, Order of Matrix [00:10:13]
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Description

  • Types of matrices (m x n; m, n  3), order; Identity matrix, Diagonal matrix.
  • Symmetric, Skew symmetric.
  • Operation – addition, subtraction, multiplication of a matrix with scalar, multiplication of two matrices (the compatibility).
  • Singular and non-singular matrices.
  • Existence of two non-zero matrices whose product is a zero matrix.
  •  Martin’s Rule (i.e. using matrices)

a1x + b1y + c1z = d1

a2x + b2y + c2z = d2

a3x + b3y + c3z = d3

NOTE: The conditions for consistency of equations in two and three variables, using matrices, are to be covered.

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