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In complex plane, the equation |z+ bar z...

In complex plane, the equation `|z+ bar z|=|z- bar z|` represents :

A

two intersecting lines

B

two parallel lines

C

four lines

D

a circle passing through the origin.

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MODERN PUBLICATION-LINEAR INEQUATIONS-EXERCISE
  1. One of the values of (-i)^(1//3) is :

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  2. The complex number z = x + iy, which satisfies the equation |(z-5i)/(z...

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  3. In complex plane, the equation |z+ bar z|=|z- bar z| represents :

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  4. For complex numbers u, v, one always has :

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  5. If ((1+i)/(1-i))^n =1, then the smallest value of n is :

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  6. Which of the following is correct ?

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  7. In the Argand diagram. if O, P and Q represent respectively the origin...

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  8. The area of the triangle with vertices affixed at z, iz, z(1 +i) is:

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  9. Multiplication of a complex z by i corresponds to :

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  10. If (c+i)/(c-i)= a+ ib, where a, b, c are real, then a^2+ b^2 equals :

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  11. If i^2=-1, then the value of overset (200) underset (n=1) (sum) i^n is...

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  12. If the conjugate of (x + iy) (1-2i) be 1+i, then :

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  13. Mathematical Induction shows that the inequality log (n!) >n/2 holds :

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  14. The inequality n ! > 2^(n-1) is true:

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  15. The number of solutions of the equation z^2+ bar z=0 is :

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  16. If alpha, beta are the roots fo the equation lamda(x^(2)-x)+x+55=0. If...

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  17. The modulus of (1-i)/(3+i)+(4i)/5 is :

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  18. For any complex number z, the minimum value of |z|+|z-1| is :

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  19. If alpha, beta are the roots of x^2-a(x-1)+b=0, then the value of 1/(a...

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  20. The sum of all real roots of the equation |x-2|^(2)+|x-2|-2=0 is

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