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A and B are two fixed points. The locus ...

A and B are two fixed points. The locus of a point P such that `angleAPB` is a right angle, is:

A

`x^(2)+y^(2)=a^(2)`

B

`x^(2)-y^(2)=a^(2)`

C

`2x^(2)+y^(2)=a^(2)`

D

None of these

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The correct Answer is:
A
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