Home
Class 12
MATHS
It A is 3-rowed square matrix and |3A|=k...

It A is 3-rowed square matrix and |3A|=k|A| then k=?

A

3

B

9

C

27

D

1

Text Solution

Verified by Experts

The correct Answer is:
C

`|3A|=(3xx3xx3)|A|=27.|A|`
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF LINEAR EQUATIONS

    RS AGGARWAL|Exercise EXERCISE 8A (VALUE BASED QUESTIONS)|4 Videos
  • STRAIGHT LINE IN SPACE

    RS AGGARWAL|Exercise Objective Questions|19 Videos
  • THE PLANE

    RS AGGARWAL|Exercise Objective Questions|35 Videos

Similar Questions

Explore conceptually related problems

If A is a 3-rowed square matrix and |A|=4 then |adjA|=?

If A is a 3-rowed square matrix and |A|=5 then |adjA|=?

If A is 2-rowed square matrix and |A|=6 then A,adjA=?

If A is a square matrix of order 3 and |3A|=k|A| then find the value of k,

8.If A is a square matrix of order 3 and |3A|=k1A1, then write the value of k.

If A is a square matrix of order 3 and |5A| = k|A|, then write the value of k

If A is a3x3 matrix,|A|!=0 and |3A|=k|A|, then write the value of k

If A is a square matrix of order 3 and |A | = 3 then |adj A | is

If 'A' is orthogonal matrix and k=|A|^(2) then the value of |[k,2k],[3k,4k]| is

If A is a square matrix of order 2 then det(-3A) is