EASY
12th West Bengal Board
IMPORTANT
Earn 100

For every choice of square matrices , of the same order, .
(a)True
(b)False

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Important Questions on Elementary Theory of Matrices
EASY
12th West Bengal Board
IMPORTANT
Any two rectangular matrices can be added, though may not be multiplied.

EASY
12th West Bengal Board
IMPORTANT
Matrix addition, when defined, is associative.

EASY
12th West Bengal Board
IMPORTANT
Product of two non-null matrices, when defined, is a non-null matrix.

EASY
12th West Bengal Board
IMPORTANT
Matrix multiplication (when defined) is distributive over matrix addition.

EASY
12th West Bengal Board
IMPORTANT
For two matrices , if then either or where is a suitable null matrix.

EASY
12th West Bengal Board
IMPORTANT
For any three matrices , , of order if then .

EASY
12th West Bengal Board
IMPORTANT
The order of the singleton matrix is

EASY
12th West Bengal Board
IMPORTANT
Every diagonal matrix is
