Home
Class 12
MATHS
If A=[i-i-i i]a n dB=[1-1-1 1],t h e nA^...

If `A=[i-i-i i]a n dB=[1-1-1 1],t h e nA^8` equals `4B` b. `128 B` c. `-128 B` d. `-64 B`

A

4B

B

128 B

C

`-128` B

D

`-64` B

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MATHEMATICS TIPS

    FIITJEE|Exercise ASSERTION - REASONING|8 Videos
  • MATHEMATICS TIPS

    FIITJEE|Exercise MCQ (MULTIPLE CORRECT)|30 Videos
  • MATHEMATICS TIPS

    FIITJEE|Exercise ASSIGNMENT (SECTION (I) : MCQ (SINGLE CORRECT)|120 Videos
  • MATHEMATICS

    FIITJEE|Exercise NUMERICAL DECIMAL BASED QUESTIONS|15 Videos
  • MATRICES

    FIITJEE|Exercise NUMERICAL BASED|3 Videos

Similar Questions

Explore conceptually related problems

If A=[[i,-i],[-i, i ]] and B=[[1,-1],[-1,1]] ,then A^( 8 ) equals,(where i=sqrt(-1) ) 4B 128 B -128 B -64 B

If A=[{:(i,-i),(-i, i):}] and B=[{:(1,-1),(-1,1):}] , then A^(4) equals to-

If A=([i,-i],[-i,i]) , B=([1,-1],[-1,1]) , A^(8)=KB and K=a^(b) then a+b=

If A = 1/ sqrt(3) [[1,1+i],[1-i,1]] then A(bar(A)^T) equals : a. O b. I c. -I d. 2I

If A=[[a+i b, c+i d],[-c+i d, a-i b]]a n da^2+b^2+c^2+d^2=1,t h e nA^(-1) is equal to a.[[a+i b,-c+i d],[-c+i d, a-i b]] b. [[a-i b,-c-i d],[-c-i d, a+i b]] c. [[a+i b,-c-i d],[-c+i d, a-i b]] d. none of these

If a=1+i, then a^(2) equals 1-i b.2i .(1+i)(1-i) d.(i-1)

If log_(32)x=0.8 , t h e n x is equal to a. 25.6 b. 16 c. 10 d. 12.8

FIITJEE-MATHEMATICS TIPS-ASSIGNMENT -OBJECTIVE
  1. If a,b,c,d are in H.P., then ab+bc+cd is equal to

    Text Solution

    |

  2. Let A = { 1,3,5,7,9 } and B= { 2,4,6,8 }. An element (a,b) of their ca...

    Text Solution

    |

  3. If A=[i-i-i i]a n dB=[1-1-1 1],t h e nA^8 equals 4B b. 128 B c. -128 B...

    Text Solution

    |

  4. If x ,y ,z are real and 4x^2+9y^2+16 z^2-6x y-12 y z-8z x=0,t h e nx ,...

    Text Solution

    |

  5. The number of ways in which an examiner can assign 40 marks to 6 quest...

    Text Solution

    |

  6. If a line with direction ratios 2:2:1 intersects the line (x-7)/(3)=(...

    Text Solution

    |

  7. The ratio of lengths of diagonals of the parallelogram constructed on ...

    Text Solution

    |

  8. The number of 4 digit numbers made by using the digits 0, 1, 3, 5, 7, ...

    Text Solution

    |

  9. If a ,1/b ,a n d1/p ,q ,1/r from two arithmetic progressions of the co...

    Text Solution

    |

  10. The maximum area of the triangle formed by the complex coordinates z,...

    Text Solution

    |

  11. If z(1),z(2),z(3) are three complex numbers and A=|{:("arg z"(1),"arg ...

    Text Solution

    |

  12. If in the expansion of 2x+5^(10) , the numerically greatest tem in equ...

    Text Solution

    |

  13. Elements of a matrix A or orddr 10xx10 are defined as a(i j)=w^(i+j) (...

    Text Solution

    |

  14. If one root of the equation z^2-a z+a-1=0i s(1+i),w h e r ea is a comp...

    Text Solution

    |

  15. If A=[{:(p,q),(r,s):}] satisfying equation x^(2)-(p+s)x+lambda=0, then

    Text Solution

    |

  16. If z = 1/3 + (1.3)/(3.6) + (1.3.5)/(3.6.9) + .... then

    Text Solution

    |

  17. Consider the set of equation x+y+xy=35,y+z+yz=8,z+x+zx=3. If z(1),z(2)...

    Text Solution

    |

  18. Let z(1),z(2) be two distinct complex numbers with non-zero real and i...

    Text Solution

    |

  19. The coefficient of a^8b^4c^9d^9 in (a b c+a b d+a c d d+b c d)^(10) is...

    Text Solution

    |

  20. Let aa n db be the roots of the equation x^2-10 c x-11 d=0 and those o...

    Text Solution

    |