Argand plane and polar representation - class-XII

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Question 1 of 19

If $z _{1}=8 +4i,\ z _{2}=6+4i$ and $arg \left(\dfrac {z-z _{1}}{z-z _{2}}\right)=\dfrac {\pi}{4}$, then $z$ satisfy

Select Your Answer:

$|z-7-4i|=1$

$|z-7-5i|=\sqrt {2}$

$|z-4i|=8$

$|z-7i|=\sqrt {18}$

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