Home
Class 12
MATHS
If A = [(a,0,0),(0,a,0),(0,0,a)] , then...

If `A = [(a,0,0),(0,a,0),(0,0,a)] ` , then det (Adj A) is :

A

`a^(27)`

B

`a^(5)`

C

`a^(6)`

D

`a^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    MODERN PUBLICATION|Exercise LATEST QUESTIONS FROM AIEEE/JEE EXAMINATIONS|13 Videos

  • MATHEMATICAL REASONING

    MODERN PUBLICATION|Exercise QUESTIONS FROM KARNATAKA CET & COMED|9 Videos

  • MOCK TEST PAPER -I

    MODERN PUBLICATION|Exercise SELECT THE CORRECT ANSWER|60 Videos

Similar Questions

Explore conceptually related problems

If A=[[a,0,0],[0,a,0],[0,0,a]] then A^n='

If A = [[1,0,0],[0,1,0],[0,0,1]] , then A^2+2 A=

If [(2,1,0),(0,2,1),(1,0,2)] then |adjA|=

If A = [(2,0,1),(0,-3,0),(0,0,4)] , verify A^(3) - 3A^(2) - 10A + 24I = 0 where 0 is zero matrix of order 3 xx 3 .

The point equidistant from (a, 0, 0), (0, a, 0), (0, 0, a) and (0, 0, 0) is:

If A=((0,0,1),(0,1,0),(1,0,0)) , then A^(4) is equal to

If A= [[2,0,0],[0,2,0],[0,0,2]] then A^6=