Home
Class 12
MATHS
If A=[(1,2,-1),(-1,1,2),(2,-1,1)], then ...

If `A=[(1,2,-1),(-1,1,2),(2,-1,1)]`, then det (adj (adjA)) is

A

`14^(4)`

B

`14^(3)`

C

`14^(2)`

D

14

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    ARIHANT MATHS|Exercise Exercise For Session 4|9 Videos

  • MATRICES

    ARIHANT MATHS|Exercise Exercise (Single Option Correct Type Questions)|30 Videos

  • MATRICES

    ARIHANT MATHS|Exercise Exercise For Session 2|19 Videos

  • MATHEMATICAL INDUCTION

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|2 Videos

  • MONOTONICITY MAXIMA AND MINIMA

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|31 Videos

Similar Questions

Explore conceptually related problems

If A = [(1,2,2),(2,1,2),(2,2,1)] , find adj (adj A)

If A = [(6,-7, 8),(1,-3,1),(2,1,-4)] , compute det (adj A).

If {:A=[(0,1,-1),(2,1,3),(3,2,1)]:} then (A(adj A)A^(-1))A=

Find the adjoint of the matrix A = [(-1,-2,-2),(2,1,-2),(2,-2,1)] and hence show that A (AdjA) = |A | I_3

Let A =[[1,2,2],[2,1,2],[2,2,1]] , then

If A = [(1,0,2),(0,2,1),(2,0,3)] , find A (adj A)

If A = =[(-1,1,1),(1,-1,1),(1,1,-1)] find the values of (i) |A||adj A| " " (ii) |adj (adj (adjA))| (iii) |adj(3A)| " " (iv) adj adj A

If A = {:[(1,2,3),(2,3,2),(3,3,4)] , find adj.A.

Find the adjoint of the matrix A = [(4,-6,1),(-1,-1,1),(-4,11,-1)] and verify that A(adj A) = (adj A ) A = |A | I_3

If A=[(3,2),(1,4)] , then A(adj A) equals