Home
Class 12
MATHS
If A is a 3x3 matrix and det (3A) = k {d...

If `A` is a 3x3 matrix and `det (3A) = k {det(A)} , k` is equal to

A

9

B

6

C

1

D

27

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

If A is a 3xx3 non -singular matrix , then det . [ adj .A] is equal to :

If A is a square matrix of order 3 xx 3 , then |KA| is equal to

If A (adj . A ) = 81 , for a 3xx3 matrix A , then det . A is equal to :

If M is a 3xx3 matrix, where det M=1a n dM M^T=I,w h e r eI is an identity matrix, prove that det (M-I)=0.

If A is a square matrix such that A^2=A then det A=

If A is a square matrix of order 3xx3 , then |KA| is equal to

Statement-1 (Assertion and Statement- 2 (Reason) Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select the correct choice as given below. Statement - 1 If A is skew-symnmetric matrix of order 3, then its determinant should be zero. Statement - 2 If A is square matrix, det (A) = det (A') = det (-A')

If A is any aquare matrix of order 3xx3 then |3A| is equal to