Home
Class 11
MATHS
If z1=9y^2-4-10ix,z2=8y^2-20i where z1=...

If `z_1=9y^2-4-10ix,z_2=8y^2-20i` where `z_1=barz_2` then z=x+iy is equal to

A

(-2)+2i

B

(-2)+-2i

C

(-2)+-i

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CIRCLE

    PATHFINDER|Exercise QUESTION BANK|198 Videos
  • COMPLEX NUMBERS

    PATHFINDER|Exercise QUESTION BANK|67 Videos

Similar Questions

Explore conceptually related problems

If z_1=3+2i,z_2=2-i , then find barz_1.barz_2

If z_1=1+2i,z_2=-i , then find barz_1+barz_2 dot

If z_1=1-i,z_2=2+i , then find barz_1.barz_2

If z_1=1-i,z_2=1+i , then find barz_1+barz_2 dot

If z_1=1-3i,z_2=1+i , then find barz_1.barz_2

If z_1=3+i,z_2=1-3i , then find barz_1.barz_2

If z=x-iy and z^(1/3)=p+iq then (x/p+y/q)/(p^2+q^2) is equal to

Let z_1 and z_2 are two complex nos s.t. abs(z_1) =abs(z_2)=1 then abs((z_1-z_2)/(1-z_1 barz_2)) is equal to

If {:[(1,4),(2,0)]={:[(x,y^2),(z,0)] , ylt0 then x-y+z is equal to___

Let z_(1) =2-i, z_(2) =-2 + i , Find (Re(z_(1)z_(2))/barz_(1))

PATHFINDER-COMPLEX NUMBER-QUESTION BANK
  1. If z1=a+ib and z2=c+id are two complex numbers lying on the circle x^...

    Text Solution

    |

  2. Number of solution(s) of the equation absz^2+7z=0 is/are

    Text Solution

    |

  3. If z1=9y^2-4-10ix,z2=8y^2-20i where z1=barz2 then z=x+iy is equal to

    Text Solution

    |

  4. Let z1,z2,z3 be three points on absz=1 let theta1,theta2 and theta3 be...

    Text Solution

    |

  5. If z1,z2 are two non zero complex numbers such that z1/z2+z2/z1=1 then...

    Text Solution

    |

  6. The complex numbers z1,z2 and z3 satisfying (z1-z3)/(z2-z3)=(1-isqrt3)...

    Text Solution

    |

  7. Let A(z1),A2(barz1) are the adjacent vertices of a regular polygon if ...

    Text Solution

    |

  8. If the points A(z),B(-z),C(1-z) are the vertices of an equilateral tri...

    Text Solution

    |

  9. Let z1 nez2 are two points in the Argand plane if a abs(z1)=b abs(z2) ...

    Text Solution

    |

  10. The least positive integer n for which ((1+i)/(1-i))^n=2/pisin^(-1)((1...

    Text Solution

    |

  11. If x=2+5i then the value of the expression x^3-5x^2+33x-49 is

    Text Solution

    |

  12. The square root of (1+i) is

    Text Solution

    |

  13. The curve represented by Im(z^2)=c^2 is

    Text Solution

    |

  14. If z be a complex number satisfying z^4+z^3+2z^2+z+1=0 then absz is eq...

    Text Solution

    |

  15. If omega is complex cube root of unity then (3+5omega+3omega^2)^2+(3+3...

    Text Solution

    |

  16. Let 0lealphalepi/2 be a fixed angle.if p=(costheta,sintheta) and Q=(co...

    Text Solution

    |

  17. A man walks a distance of 3 units from the origin towards the north ea...

    Text Solution

    |

  18. z^2+zabsz+absz^2=0 then the locus of z is

    Text Solution

    |

  19. The polynomial x^6+4x^5+3x^4+2x^3+x+1 is divisible by

    Text Solution

    |

  20. If z1,z2,z3 are three complex numbers and A= abs[[argz1,argz2,argz3],...

    Text Solution

    |