Home
Class 12
MATHS
IF A=[[x,1],[1,0]] and A^2=I, then A^(-1...

IF `A=[[x,1],[1,0]]` and `A^2=I`, then `A^(-1)` is equal to

A

`[[0,1],[1,0]]`

B

`[[1,0],[0,1]]`

C

`[[1,1],[1,1]]`

D

`[[0,0],[0,0]]`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MHT-CET 2019 QUESTION PAPER

    TARGET PUBLICATION|Exercise Binomial Distribution|1 Videos

  • MODEL QUESTION PAPER-II

    TARGET PUBLICATION|Exercise MCQs|49 Videos

Similar Questions

Explore conceptually related problems

If [(x,1),(1,0)] and A^(2)=I , then A^(-1) is equal to

If A^(2) - A + I = 0 then A^(-1) is equal to

If A=[[x,1]][[1,0],[-2,0]] =0 , then x is equals to

if A=[[x,0],[-1,2x]] and A^-1 =[[1,0],[1/2,1/2]] then x is equal to (i) -2 (ii)-1 (iii)1 (iv)2

(1+2i)/(1+3i) is equal to

Let matrix A=[[1,0,0],[1,0,1],[0,1,0]] then the value of |A^(2012)-I| is equal to

If A = {:((1,-1),(1,2)):} and I={:((1,0),(0,1)):} then 3A^(-1) is equal to :

TARGET PUBLICATION-MODEL QUESTION PAPER-I-MCQs
  1. If the position vectors of the points A,B,C are bara,barb and 3bara-2b...

    Text Solution

    |

  2. int(sin^3 2x)/(cos^5 2x)dx=

    Text Solution

    |

  3. IF A=[[x,1],[1,0]] and A^2=I, then A^(-1) is equal to

    Text Solution

    |

  4. The order of the differential equation of the family of parabolas whos...

    Text Solution

    |

  5. What are the direction cosines of the y-axis ?

    Text Solution

    |

  6. IF y=cos^2((3x)/2)-sin^2((3x)/2),then(d^2y)/(dx^2)is

    Text Solution

    |

  7. A fair coin is tossed n times. if the probability that head occurs 6 t...

    Text Solution

    |

  8. The probability that at least one of the events Aa n dB occurs is 0.6....

    Text Solution

    |

  9. (cos9^@+sin9^@)/(cos9^@-sim9^@)= (a) tan 54^@ (b) tan 36^@ (d) None of...

    Text Solution

    |

  10. e^(-x) (dy)/(dx) = y(1+ tanx + tan^(2) x)

    Text Solution

    |

  11. int(0)^(pi//6)(sinx)/(cos^(3)x) dx is equal to

    Text Solution

    |

  12. Prove that the lines x/1=(y-2)/2=(z+3)/3 and (x-2)/2=(y-6)/3=(z-3)/4 a...

    Text Solution

    |

  13. In a triangle ABC, if a =2x, b=2y and C=120^(@), then the area of the ...

    Text Solution

    |

  14. IF tan^-1(1+x)+tan^-1(1-x)=pi/2, then the value of x is

    Text Solution

    |

  15. IF tan.mtheta=tan.ntheta, then the general value of theta will be in

    Text Solution

    |

  16. The minimum value of (x^(2) + (250)/(x)) is

    Text Solution

    |

  17. Area bounded by the curve f(x) = cos x which is bounded by the lines x...

    Text Solution

    |

  18. If x=t^2 and y=t^3 , find (d^2y)/(dx^2) .

    Text Solution

    |

  19. The area bounded by the parabola y = 4x - x^(2) and X-axis is

    Text Solution

    |

  20. y=a+b/x is a solution of the differential equation

    Text Solution

    |