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Question

If |z|1 then the minimum and maximum value of |z - 3| are

A
4, 2
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B
3, 4
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C
4, 6
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D
2, 4
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Solution

The correct option is D 2, 4
Using triangle inequality
||z||3|||z3||z|+|3|
|13||z3|1+3
2|z3|4

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