Home
Class 12
MATHS
The determinant of the matrix A=|(1,1,1)...

The determinant of the matrix `A=|(1,1,1),(1,omega,omega^2),(1,omega^2,omega)|,` where `omega=e(2pii)/3,` is

Promotional Banner

Topper's Solved these Questions

  • INVERSE TRIGONOMETRIC FUNCTIONS

    RESONANCE DPP ENGLISH|Exercise All Questions|15 Videos
  • MATRICES

    RESONANCE DPP ENGLISH|Exercise All Questions|7 Videos

Similar Questions

Explore conceptually related problems

Let omega=-1/2+i(sqrt(3))/2 . Then the value of the determinant |(1,1,1),(1,-1-omega^2,omega^2),(1,omega^2,omega^4)| is (A) 3omega (B) 3omega(omega-1) (C) 3omega^2 (D) 3omega(1-omega)

Prove that the value of determinant |{:(1,,omega,,omega^(2)),(omega ,,omega^(2),,1),( omega^(2),, 1,,omega):}|=0 where omega is complex cube root of unity .

The value of the determinant |(1,omega^(3),omega^(5)),(omega^(3),1,omega^(4)),(omega^(5),omega^(4),1)| , where omega is an imaginary cube root of unity, is

If omega is a complex cube root of unity, then a root of the equation |(x +1,omega,omega^(2)),(omega,x + omega^(2),1),(omega^(2),1,x + omega)| = 0 , is

Let omega=-1/2+i(sqrt(3))/2, then value of the determinant [[1, 1, 1],[ 1,-1-omega^2,-omega^2],[1, omega^2,omega^4]] is (a) 3omega (b) 3omega(omega-1) (c) 3omega^2 (d) 3omega(1-omega)

Evaluate |(1,omega,omega^2),(omega,omega^2,1),(omega^2,omega, omega)| where omega is cube root of unity.

If one of the cube roots of 1 be omega , then |(1,1+omega^2,omega^2),(1-i,-1,omega^2-1),(-i,-1+omega,-1)| (A) omega (B) i (C) 1 (D) 0

Let omega be a complex number such that 2omega+1=z where z=sqrt(-3) . If |{:(1,1,1),(1,-omega^(2)-1,omega^(2)),(1,omega^(2),omega^(7))|=3k , then k is equal to

If 1.omega, omega^2 are the roots of unity, then Delta=|(1,omega^n,omega^(2n)),(omega^n,omega^(2n),1),(omega^(2n),1,omega^n)| is equal to

If omega is an imaginary cube root of unity, then the value of the determinant |(1+omega,omega^2,-omega),(1+omega^2,omega,-omega^2),(omega+omega^2,omega,-omega^2)|

RESONANCE DPP ENGLISH-JEE MAINS-All Questions
  1. lim(xto oo) (int(0)^(x)(tan^(-1)t)^2dt)/(sqrt(x^(2)+1)) has the value ...

    Text Solution

    |

  2. If in a triangle r1=r2+r3+r , prove that the triangle is right angled.

    Text Solution

    |

  3. The determinant of the matrix A=|(1,1,1),(1,omega,omega^2),(1,omega^2,...

    Text Solution

    |

  4. The number of odd divisor of the number N=2^(10). 3^5 .7^2, are a....

    Text Solution

    |

  5. The equation |x+1|^(log)(("x"+1))(3+2-x^(2))=(x-3)|x| has a. unique s...

    Text Solution

    |

  6. Let f : R to R be a differentiable function and f(1) = 4. Then, the va...

    Text Solution

    |

  7. In a A B C ,A : B : C=3:5: 4. Then a+b+csqrt(2) is equal to a.2b b. 2...

    Text Solution

    |

  8. For x in R the expression (x ^(2) +2x +c)/(x ^(2)+ 4x + 3x ) can take ...

    Text Solution

    |

  9. Prove that int0^1tan^(-1)(1/(1-x+x^2))dx=2int0^1tan^(-1)x dx. Hence ...

    Text Solution

    |

  10. A seven digit number is choosen. What the probability that even number...

    Text Solution

    |

  11. If the papers of 4 students can be checked by any one of the 7 teac...

    Text Solution

    |

  12. Let N be the foot of perpendicular to the x-axis from point P on the p...

    Text Solution

    |

  13. If all the letters of the word IIT-JEE are written at random in a ro...

    Text Solution

    |

  14. A man and a woman appear in an interview for two vacancies in the s...

    Text Solution

    |

  15. 18 points are indicated on the perimeter of a triangle ABC (see fig...

    Text Solution

    |

  16. The numbers 1, 2, 3, ..., n are arrange in a random order. The probabi...

    Text Solution

    |

  17. If the vectors vec c , vec a=x hat i+y hat j+z hat k and vec b= hat j...

    Text Solution

    |

  18. For two complex numbers z1&z2 (a z1+b z1)(c z2+d z2)=(c z1+bz2)if(a ...

    Text Solution

    |

  19. A five digits number of the form xyzyx is choosen, probability that xl...

    Text Solution

    |

  20. An integer is chosen at random and squared. Find the probability th...

    Text Solution

    |