If A and B are two fixed point, then the...

If A and B are two fixed point, then the loucs of a point P, such that `PA^(2) + PB^(2) = AB^(2)` is a/an ______

A

circle with AB as the diameter

B

right triangle with `/_ P = 90^(@)`

C

semi with AB as the diameter

D

circle with AB as the diameter, excluding points A and B

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The correct Answer is:

D

Angle in semicircle is `90^(@)`

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