State True of False for the following:
The inequality |z – 4| < |z – 2| represents the region given by x > 3.
True
Explanation:
Given |z – 4| < |z – 2|
Putting z = x + iy,
⇒ |x – 4 + iy| < |x – 2 + iy|
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⇒ (x – 4)2 + y2 < (x – 2)2 + y2
⇒ x2 – 8x + 16 + y2 < x2 – 4x + 4 + y2
⇒ -8x + 16 < -4x + 4
⇒ 4x > 12
∴ x > 3
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