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JEE Main/Advance
IMPORTANT
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If a diagonal matrix is commutative with every matrix of the same order then it is necessarily

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Important Questions on Matrices

MEDIUM
JEE Main/Advance
IMPORTANT
If A=1011, then A2008 is equal to
MEDIUM
JEE Main/Advance
IMPORTANT
If A and B are two matrices such that AB=B and BA=A, thenA2+B2 is equal to
MEDIUM
JEE Main/Advance
IMPORTANT
712921345+245 is equal to
MEDIUM
JEE Main/Advance
IMPORTANT
If f x=x2+4x-5 and A=1 24-3, then fA is equal to
HARD
JEE Main/Advance
IMPORTANT
If A is a square matrix such that A2=I, then A-1 is equal to 
MEDIUM
JEE Main/Advance
IMPORTANT
If the square matrices A and B are such that AB=A and BA=B, then
MEDIUM
JEE Main/Advance
IMPORTANT
Which of the following about the trace of a matrix is false?
HARD
JEE Main/Advance
IMPORTANT
If A=ab, B=-b-a and C=a-a, then correct statement is