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Find the range of K for which the equati...

Find the range of `K` for which the equation `|z+i| - |z-i | = K` represents a hyperbola.

A

a hyperbola if `0ltklt2`

B

a pair of ray if `k lt 2`

C

a straight line if k = 0

D

a pair of ray if k = 2

Text Solution

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The correct Answer is:
A,C,D,B
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