JEE Main 2017 Mathematics question
Let , the set of complex numbers. Then the equation represents:
Answer: (1)
Solution
The condition says the distances to the two fixed points and are in the constant ratio — an Apollonius circle, not a conic with foci. Put and square:
+ (y+ = + (y-.
Expanding,
+ + 24y + 36 = + - 2y + 1,
so
+ + 26y + 35 = 0
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