Home
Class 12
MATHS
If D=diag[2, 3, 4], then D^(-1)=...a) O ...

If `D=diag[2, 3, 4]`, then `D^(-1)=`...a) O b) I c) D d) diag`[(1)/(2), (1)/(3), (1)/(4)]`

A

O

B

I

C

D

D

diag `[(1)/(2), (1)/(3), (1)/(4)]`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

If A=[(1,-1,0),(1,0,0),(0,0,-1)] , then A^(-1) is...a) A^T b) A^2 c) A d) I

If A =[{:(a, b), (c, d):}] " then " A^(-1) = ____. a) (1)/(ad-bc)[(b,-c),(-d,a)] b) (1)/(ab-cd)[(b,-c),(-d,a)] c) (1)/(ab-cd)[(b,d),(c,a)] d)None of these

For a given A.P., t_7=4 , d=-4 then a=……… a) 6 b) -7 c) 20 d) 28

For an A.P.: 2,-2,-6,-10,…. find d . a) -4 b) 2 c) 4 d) 1

Find the missing term in the A.P: -5, ...., 13 a) 1 b) 4 c) 2 d) 3

sin(pi/3-sin^(-1)(-1/2)) is equal to(A) 1/2 (B) 1/3 (C) 1/4 (D) 1

If e^y = (x+1) then (d^2y)/(dx^2) =.......... A) (dy/dx)^2 B) - (dy/dx)^2 C) 0 D) 1

Let A and B be two sets such that n(A)=5\ a n d\ n(B)=2,\ if\ a ,\ b ,\ c ,\ d ,\ e are distinct and (a ,2),\ (b ,3),\ (c ,2),\ (d ,3),\ (e ,2) are in AxxB , find A and B.