Home
Class 12
MATHS
I: If A=[(1,2),(3,4)] then A^(-1)=[(4,-2...

I: If `A=[(1,2),(3,4)]` then `A^(-1)=[(4,-2),(-3,1)]`
II: If `A=[(3,4),(2,1)]` then `A^(-1)=1/5[(-1,4),(2,-3)]`

A

only I is true

B

only Ii is true

C

both I and II are true

D

neither I nor II true

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 MCQ (SPECIAL TYPES QUESTIONS) SET -2|7 Videos

  • MATRICES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 MCQ (SPECIAL TYPES QUESTIONS) SET -3|1 Videos

  • MATRICES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1D MCQ (LINEAR EQUATIONS)|53 Videos

  • MATHEMATICAL REASONING [APPENDIX - 4]

    DIPTI PUBLICATION ( AP EAMET)|Exercise Exercise|150 Videos

  • MEASURES OF DISPERSION

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE-2 ( SET -4)|2 Videos

Similar Questions

Explore conceptually related problems

If A=[(1,-1),(3,4),(-1,5)],B=[(-1,2),(3,1)] then AB=

If A=[(1,-2,3),(-4,2,5)],B=[(2,3),(4,5),(2,1)] then

If A=[(1,-3,-4),(-1,3,4),(1,-3,-4)] then A^(2)=

I: If A=[(-2,1,0),(3,4,-5)],B=[(1,2),(4,3),(-1,5)] then A+B^(T)=[(-1,5,-1),(5,7,0)] II: If A=[(2,-1,2),(1,3,-1)],B=[(3,-2,1),(2,0,-1)] then (AB^(T))^(T)=[(10,2),(-4,3)]

If [(1,2,3),(3,2,1)]+X=[(4,4,4),(4,4,4)] then X=

I: If A=[(0,1,2),(2,3,4),(4,5,-6)],B=[(-1,2,3),(0,1,0),(0,0,-1)] then 4A-5B=[(5,-6,-7),(8,7,16),(16,20,-19)] II:If A=[(1,2,3),(3,2,1)]B=[(3,2,1),(1,2,3)] then 3B-2A=[(7,2,-3),(-3,2,7)]

If A=[(0,1,2),(1,2,3),(3,1,1)] and A^(-1)=[(1//2,-1//2,1//2),(-4,3,x),(5//2,-3//2,1//2)] then

If A = {1,2,2,1,3,4,3,4} , then n(A) =

If A^(-1)=1/3[(1,4,-2),(-2,-5,4),(1,-2,1)] and |A|=3 the Adj A =