If |z - 4| less than |z - 2|, its solution is given by
If |z - 4| < |z - 2|, its solution is given by
- Re(z) > 3
- Re(z) > 0
- Re(z) < 0
- Re(z) > 2
Solution
|z – 4| < |z – 2|
By taking, z = a + ib
|(a – 4) + ib| < |(a – 2) + ib|
(a – 4)2 + b2 < (a – 2)2 + b2
a2 + 16 - 8a < a2 + 4 - 4a
-8a + 4a < -16 + 4
- 4a < -12
4a > 12
a > 3
The correct option is A.