Properties of Inverse of a Matrix

Author:Embibe Experts
MHT-CET
IMPORTANT

Important Questions on Properties of Inverse of a Matrix

MEDIUM
IMPORTANT

If A and B are square matrices of order 3 then

EASY
IMPORTANT

If A and B are matrices and B=ABA-1, then the value of A+BA-B is

MEDIUM
IMPORTANT

If A=  2 2-3  2 and B=0 -11     0, then B-1A-1-1=

HARD
IMPORTANT

If A and B are square matrices of the same order and A is non-singular, then for a positive integer n,A-1BAn is equal to 

EASY
IMPORTANT

If a matrix A is such that 4A3+2A2+7A+I=0, then A-1 equals

MEDIUM
IMPORTANT

If P=123310001, Q=1-2-3-31900-5, then (PQ)-1 equals to

HARD
IMPORTANT

If product of matrix A with 012-4 is 3211, then A-1 is given by

MEDIUM
IMPORTANT

If A=122212221 and A-1 exists and not equal to zero, then A2-4AA-1 is

MEDIUM
IMPORTANT

Let A be an invertible matrix. Which of the following is not true?

EASY
IMPORTANT

From the matrix equation AB=AC we can conclude that B=C, provided
 

MEDIUM
IMPORTANT

Let A, B and C are n×n matrices such that A=2, B=3 and C=5. If 2A23B5C-1=1728125, then the value of n is equal to