Home
Class 12
MATHS
If the conjugate of a complex numbers is...

If the conjugate of a complex numbers is `1/(i-1)`, where `i=sqrt(-1)`. Then, the complex number is

A

`(-1)/(i-1)`

B

`1/(i+1)`

C

`(-1)/(i+1)`

D

`1/(i-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • COMPLEX NUMBERS

    ARIHANT MATHS|Exercise Exercise (Subjective Type Questions)|12 Videos
  • CIRCLE

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|16 Videos
  • CONTINUITY AND DIFFERENTIABILITY

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|20 Videos

Similar Questions

Explore conceptually related problems

The conjugate of a complex number is 1/(i-1) . Then the complex number is (1) (-1)/(i-1) (2) 1/(i+1) (3) (-1)/(i+1) (4) 1/(i-1)

What is the argument of the complex number (-1-i) where i=sqrt(-1)?

If the multicative inverse of a comlex number is (sqrt3+4i)\\19, where i=sqrt-1, find the complex number.

The conjugate of a complex number z is (2)/(1-i) . Then Re(z) equals

ARIHANT MATHS-COMPLEX NUMBERS-Exercise (Questions Asked In Previous 13 Years Exam)
  1. Let A,B and C be three sets of complex numbers as defined below: {:(,A...

    Text Solution

    |

  2. A particle P starts from the point z0=1+2i , where i=sqrt(-1) . It mov...

    Text Solution

    |

  3. If the conjugate of a complex numbers is 1/(i-1), where i=sqrt(-1). Th...

    Text Solution

    |

  4. Let z=x+i y be a complex number where xa n dy are integers. Then, the ...

    Text Solution

    |

  5. Let z=costheta+isintheta. Then the value of sum(m->1-15)Img(z^(2m-1...

    Text Solution

    |

  6. If |Z-4/Z|=2 then maximum value of |Z| is equal to

    Text Solution

    |

  7. Let z(1) and z(2) be two distinct complex numbers and z=(1-t)z(1)+iz(2...

    Text Solution

    |

  8. Let omega be the complex number cos((2pi)/3)+isin((2pi)/3). Then the...

    Text Solution

    |

  9. If alpha and beta are the roots of the equation x^(2)-x+1=0, alpha^(20...

    Text Solution

    |

  10. The number of complex numbers z such that |z-1|=|z+1|=|z-i| is

    Text Solution

    |

  11. If z is any complex number satisfying abs(z-3-2i) le 2, where i=sqrt(-...

    Text Solution

    |

  12. The set {R e((2i z)/(1-z^2)): zi sacom p l e xnu m b e r ,|z|=1,z=+-1}...

    Text Solution

    |

  13. The maximum value of |a r g(1/(1-z))|for|z|=1,z!=1 is given by.

    Text Solution

    |

  14. Let omega= e^((ipi)/3) and a, b, c, x, y, z be non-zero complex numb...

    Text Solution

    |

  15. Let alpha and beta be real numbers and z be a complex number. If z^(2...

    Text Solution

    |

  16. If omega(ne 1) be a cube root of unity and (1+omega)^(7)=A+Bomega, the...

    Text Solution

    |

  17. Let z be a complex number such that the imaginary part of z is nonzero...

    Text Solution

    |

  18. If z ne 1 and (z^(2))/(z-1) is real, the point represented by the comp...

    Text Solution

    |

  19. If z is a complex number of unit modulus and argument theta, then arg(...

    Text Solution

    |

  20. Let complex numbers alpha and 1/alpha lies on circle (x-x0)^2(y-y0)^2=...

    Text Solution

    |