Home
Class 11
MATHS
Prove that the complex numbers z1,z2 and...

Prove that the complex numbers `z_1,z_2` and the origin from an isoceles triangle with vertical angle `(2pi)/3` if `z_1^2+z_1z_2+z_2^2=0`

Promotional Banner

Topper's Solved these Questions

  • COMPLEX NUMBER

    PATHFINDER|Exercise QUESTION BANK|224 Videos
  • CONIC SECTION

    PATHFINDER|Exercise QUESTION BANK|25 Videos

Similar Questions

Explore conceptually related problems

z_(1) and z_(2) are two non-zero complex numbers, they form an equilateral triangle with the origin in the complex plane. Prove that z_(1)^(2)-z_(1)z_(2)+z_(2)^(2)=0

z_(1) and z_(2) are two non-zero complex numbers such that z_(1)^(2)+z_(1)z_(2)+z_(2)^(2)=0 . Prove that the ponts z_(1),z_(2) and the origin form an isosceles triangle in the complex plane.

Let the complex numbers z_1,z_2 and z_3 be the vertices of an equilateral triangle let z_0 be the circumcentre of the triangle then prove that z_1^2+z_2^2+z_3^2=3z_0^2

Complex numbers z_1 , z_2 , z_3 are the vertices A, B, C respectively of an isosceles right angled triangle with right angle at C and (z_1- z_2)^2 = k(z_1 - z_3) (z_3 -z_2) , then find k.

If z_1^2+z_2^2+2z_1.z_2.costheta= 0 prove that the points represented by z_1, z_2 , and the origin form an isosceles triangle.

If z_0 is the circumcenter of an equilateral triangle with vertices z_1, z_2, z_3 then z_1^2+z_2^2+z_3^2 is equal to

If the vertices of an equilateral triangle be represented by the complex numbers z_(1),z_(2),z_(3) on the Argand diagram, then prove that, z_(1)^(2)+z_(2)^(2)+z_(3)^(2)=z_(1)z_(2)+z_(2)z_(3)+z_(3)z_(1).

The complex numbers z_1,z_2 and z_3 satisfying (z_1-z_3)/(z_2-z_3)=(1-isqrt3)/2 are the verticles of a triangle which is:

If the complex numbers z_(1),z_(2),z_(3) represents the vertices of an equilaterla triangle such that |z_(1)|=|z_(2)|=|z_(3)| , show that z_(1)+z_(2)+z_(3)=0

Let vertices of an acute-angled triangle are A(z_1),B(z_2),a n dC(z_3)dot If the origin O is the orthocentre of the triangle, then prove that z_1 bar z _2+ bar z _1z_2=z_2 bar z _3+ bar z _2z_3=z_3 bar z _1+ bar z _3z_1

PATHFINDER-COMPLEX NUMBERS-QUESTION BANK
  1. If omega is the imaginary cube root of 1 then prove that (a+bomega+com...

    Text Solution

    |

  2. If y=sqrt(x^2+6x+8) then show that one of the value of sqrt(1+iy)+sqrt...

    Text Solution

    |

  3. If x=cosalpha+isinalpha and 1+sqrt(1-y^2)=ny then show that y/2n(1+nx)...

    Text Solution

    |

  4. If a=1/2(5-isqrt3) then find the value of a^3-6a^2+12a-8

    Text Solution

    |

  5. Show that complex numbers (2+i3), (2-i3), (3-i2), (3+i2) are concyclic...

    Text Solution

    |

  6. If in argand plane the vertices A,B,C of an isoceles triangle are rep...

    Text Solution

    |

  7. If z1,z2,z3 are three complex number then prove that z1Im(barz2.z3)+z2...

    Text Solution

    |

  8. Prove that (1-omega^2)(1-omega^2+omega^4)(1-omega^4+omega^8)………..to 2n...

    Text Solution

    |

  9. If x-iy = sqrt((a+ib)/(c-id)), prove that (x^(2) + y^(2))^(2) = (a^(2)...

    Text Solution

    |

  10. If z be complex no. and (z-1)/(z+1) be purely imaginary show that z li...

    Text Solution

    |

  11. z1 and z2 be two complex no. then prove that abs(z1+z2)^2+abs(z1-z2)^2...

    Text Solution

    |

  12. If z=3/(2+costheta+isintheta) then show that z lies on a circle in the...

    Text Solution

    |

  13. If a=cosalpha+isinalpha , b=cosbeta+isinbeta , c=cosgamma+isingamma an...

    Text Solution

    |

  14. Ifomega is the imaginary cube root of unity and a+b+c=0 then show that...

    Text Solution

    |

  15. Ifz1,z2,z3 represent three vertices of an equilateral triangle in arga...

    Text Solution

    |

  16. Prove that the complex numbers z1,z2 and the origin from an isoceles t...

    Text Solution

    |

  17. If (1+x)^n=a0+a1x+a2x^2+…..+anx^n then show that (a0-a2+a4-……)^2+(a1-a...

    Text Solution

    |

  18. If z1,z2,z3………..zn are n complex numbers s.t, abs(z1)=abs(z2)=………….abs...

    Text Solution

    |

  19. z1 and z2 be two complex no. then prove that abs(z1+z2)^2+abs(z1-z2)^2...

    Text Solution

    |

  20. If costheta=1/2(a+1/a) cos(phi)=1/2(b+1/b) show that one of the valu...

    Text Solution

    |