MATRICES CLASS XII MODULE 2

LECTURE SLIDES - MISHAL CHAUHAN
MATRICES
MISHAL CHAUHAN
CLASS 12
MODULE - 2

WHAT SHALL WE LEARN TODAY?
 MULTIPLICATION OF MATRICES
 DETERMINANT OF MATRIX
 EXAMPLES

MULTIPLICATION OF MATRICES

MULTIPLICATION OF MATRICES =
EXAMPLE - 1

EXAMPLE - 1
Sol:

EXAMPLE - 2

EXAMPLE - 2
Sol:

EXAMPLE - 3

EXAMPLE - 3
Sol:

TIMER EXERCISE…!
Que:
2 Minutes

TIMER EXERCISE…!

HOMEWORK - 1

PROPERTIES OF MATRIX
MULTIPLICATION
Distributive Property
Associative Property

EXAMPLE - 4

EXAMPLE - 4
Sol:

EXAMPLE - 5

EXAMPLE - 5
Sol:

EXAMPLE - 6

EXAMPLE - 6
Sol:

HOMEWORK - 2
i)
ii)
iii)

INVERTIBLE MATRIX

INVERTIBLE MATRIX
IMPORTANT:
1. A rectangular matrix does not possess inverse
matrix, since for products BA and AB to be
defined and to be equal, it is necessary that
matrices A and B should be square matrices of the
same order.
2. If B is the inverse of A, then A is also the
inverse of B.

EXAMPLE - 7

EXAMPLE - 7
Sol:

DETERMINANT OF A 2x2 MATRIX

DETERMINANT OF A 3X3 MATRIX

DETERMINANT OF A 3X3 MATRIX
EXAMPLE - 8

REFERENCE BOOKS
ACKNOWLEDGEMENT
 CENGAGE PUBLICATION, MATHEMATICS
(G.TEWANI)
 R.D SHARMA OBJECTIVE MATHEMATICS FOR
IITJEE
 WILEY MATHEMATICS
 PEARSON MATHEMATICS, IITJEE
SUPERCOURSE
 GSEB QUESTIONBANKS
 NCERT EXEMPLAR

THANKS

MATRICES CLASS XII MODULE 2

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MATRICES CLASS XII MODULE 2