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FP2 Complex Numbers

Please could someone explain part c) of this question?

Thanks for any help!
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Just consider each locus seperately, the first one requires you to shade inside the circle, the second inequality requires the angle from z=-6 to be greater than arctan(1/2), so the region above this is shaded.
(edited 7 years ago)
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Avatar for φM23
φM23
OP
7
Original post by Craig1998
Just consider each locus seperately, the first one requires you to shade inside the circle, the second inequality requires the angle from z=-6 to be greater than arctan(1/2), so the region above this is shaded.


Thanks for the reply!


What's confusing me really is the inequality in |z-6+3i| > 3|z+2-i|. What does this mean? Why isn't it an equals sign instead?
Reply 3
Avatar for Zacken
Zacken
22
Original post by PhyM23
Thanks for the reply!


What's confusing me really is the inequality in |z-6+3i| > 3|z+2-i|. What does this mean? Why isn't it an equals sign instead?


The inequality just means that there's an area to shade rather than a line/circle to draw.

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