Home
Class 12
MATHS
If A is an invertible matrix of order 3 ...

If A is an invertible matrix of order 3 and |A| = 5, then the value of |adjA| is equal to-

A

20

B

21

C

24

D

25

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ADJOINT AND INVERSE OF A MATRIX AND SOLUTION OF LINEAR SIMULTANEOUS EQUATIONS BY MATRIX METHOD

    CHHAYA PUBLICATION|Exercise VERY SHORT ANSWER TYPE QUESTIONS|38 Videos

  • ADJOINT AND INVERSE OF A MATRIX AND SOLUTION OF LINEAR SIMULTANEOUS EQUATIONS BY MATRIX METHOD

    CHHAYA PUBLICATION|Exercise SHORT ANSWER TYPE QUESTION|9 Videos

  • ADJOINT AND INVERSE OF A MATRIX AND SOLUTION OF LINEAR SIMULTANEOUS EQUATIONS BY MATRIX METHOD

    CHHAYA PUBLICATION|Exercise ASSERTION-REASON TYPE|2 Videos

  • ALGEBRA

    CHHAYA PUBLICATION|Exercise JEE ADVANCED ARCHIVE 2016|5 Videos

Similar Questions

Explore conceptually related problems

If A is an ivertible matrix of order 3xx3 and |A| = 6, then find the value of |adj.A|.

If A is an invertible matrix of order 2, then det (A^(-1)) is equal to

If A=[(3,4),(5,7)] , then the value of A(adjA) is equal to -

If A is an idempotent matrix satisfying, (I-0. 4 A)^(-1)=I-alphaA ,w h e r eI is the unit matrix of the name order as that of A , then th value of |9alpha| is equal to ________.

If A is a square matrix of order 3 such that |A|=2 , then |(adjA^(-1))^(-1)| is

If A is a square matrix of order 3 such that |A|=5 , then |Adj(4A)|=

If A is a square matrix of order 3xx3 and lambda is a scalar, then adj (lambdaA) is equal to -

If f(x) is an invertible function and g(x)=2f(x)+5, then the value of g^(-1)(x)i s

Suppose A is a 4xx4 matrix such that |A| = 4 and |adjA| = Bk, then the value of k will be -

If A is non singular 3xx3 matrix and |A| =8, then |AdjA|=