EASY
12th West Bengal Board
IMPORTANT
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If A is an invertible matrix of order 3 and k is a nonzero constant, then kA-1=

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Important Questions on Adjoint and Inverse of a Matrix

EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
For a singular matrix A, AAdj A is =
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
If A is a square matrix of order 2, then det Adj A=
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
If A is a matrix order 3×3 and if detA = 3, then det(AdjA)=
MEDIUM
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
For matrix A of order n×n, A(Adj A)=
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
If A is a square matrix of order 2, then Adj(Adj A)=
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
If A and B are two invertible matrices, then Adj (AB)=
EASY
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
If detA=3 and A−1=3−1−5323 , then AdjA=
MEDIUM
12th West Bengal Board
IMPORTANT
RUDIMENTS of MATHEMATICS For Class 12 of +2 Level>Chapter 5 - Adjoint and Inverse of a Matrix>EXERCISE>Q 3
The system of linear equations x+y=22x+2y=3 has