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 (A)) is

A

`(14)^(2)`

B

`(13)^(2)`

C

`(14)^(3)`

D

`(13)^(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOCK TEST 3

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MCQS|50 Videos

  • MOCK TEST 5

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MCQS|50 Videos

Similar Questions

Explore conceptually related problems

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

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

Knowledge Check

  • If A= [ (1,2,-1),(-1,1,2),(2,-1,1)] then det {adj (A)} equals

    A
    `(14)^(2)`
    B
    `(13)^(2)`
    C
    `(14)^(3)`
    D
    `(13)^(3)`

  • If A=[(-1,-2,-2),(2,1,2),(2,-2,1)] the adj. A=

    A
    A
    B
    `A^(T)`
    C
    `3A`
    D
    `3A^(T)`

  • If A=[(3,2,-1),(4,-1,2),(0,1,2)] then adj (adjA) is

    A
    `32A`
    B
    `-32A`
    C
    `33A`
    D
    `-35A`

    • Similar Questions

    Explore conceptually related problems

    If A=[(1,2,0),(-1,1,2),(2,-1,1)] then det (Adj(AdjA))= (A) 13 (B) 13^2 (C) 13^4 (D) none of these

    If A=[[1,2,-1-1,1,22,-1,1]], then det (adj (adj A)

    If A={:[(1,2,-1),(-1,2,2),(2,-1,1)],:} then : |adj(adj.A)|=

    If A=[(-1,-2,-2),(2,1,-2),(2,-2,1)] then Adj. A=3A.

    If A = [(1,1,1),(1,2,-3),(2,-1,3)] then | adj A| =

    Home
    Profile