JEE MATHEMATICS MCQ: COMPLEX NUMBERS

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Understanding +4 | -1

The inequality

|z-i| < |z+i|

represents the region

View answer and explanation

Correct option: C

\operatorname{Im}(z) > 0

Option C (

\operatorname{Im}(z) > 0

) is correct because the inequality

|z-i| < |z+i|

represents the set of all points in the complex plane that are closer to

i

than to

-i

, which is the upper half-plane.

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\left|\sum\limits_{r=1}^n z_r\right|

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\alpha, \beta

\gamma

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