Q.
If z is a complex number in the Argand plane, then the equation |z−2|+|z+2|=8 represents:
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a
Parabola
b
Ellipse
c
Hyperbola
d
Circle
answer is B.
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Detailed Solution
|z−2|+|z+2|=8 Comparing with |z−z1|+|z−z2|=2a ∴ z1=2,z2=−2,2a=8 Here |z1−z2|<2a ∴ it is an elliplse
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