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If |z1|=|z2|=1 , then |z1+z2| =...

If `|z_1|=|z_2|=1 , then |z_1+z_2|` =

A

`|1/z_1+1/z_2|`

B

`|1/z_1-1/z_2|`

C

`|1/z_1.(1)/z_2|`

D

none

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-COMPLEX NUMBERS -EXERCISE 1
  1. If A,B,C are angles of a triangle such that x = cis A , y = cis B , z...

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  2. For any two complex numbers z1,z2 and real numbers a and b , |az1 -bz2...

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  3. If |z1|=|z2|=1 , then |z1+z2| =

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  4. If (5z2)/(7z1) is purely imaginary , then |(2z1+3z2)/(2z1-3z2)|=

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  5. tan{ilog((a-ib)/(a+ib))}=

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  6. If |z-4//z|=2 then the greatest value of |z| is

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  7. The maximum value of |z| when z satisfies the condition |z+2/z|=2 is

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  8. The minimum value of |z-1|+ |z-5| is

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  9. If z(1) , z(2) are two complex numbers satisfying |(z(1) - 3z(2))/(3 -...

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  10. If the point z = (1+i) (1+2i)(1+3i)…(1+10i) lies on a circle with cent...

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  11. If |z-1| = 2 then the locus of z is

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  12. If |3z-2|=5 then the locus of z is

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  13. If |z-3+i| = 4 then the locus of z = x +iy is

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  14. If |(z-1)/(z-3)| = 2 then the locus of z = x +iy is

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  15. The locus of the point z = x +iy satisfying the equation |(z-1)/(z+1)|...

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  16. If |(z-a)/(z+a)|=1 where Re (a)ne0 then locus of z = x +iy is

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  17. If |(z-i)/(z+i)|=1 then the locus of z is

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  18. The equation of the locus of 2 such that |(z-i)/(z+i)|=2, where z = x ...

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  19. The locus of the point z = x + iy satisfying |(z-2i)/(z+2i)|=1 is

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  20. If |(z+4i)/(z-2)|=2 then the locus of z is

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