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Let the foci of the ellipse (x^(2))/(9)...

Let the foci of the ellipse `(x^(2))/(9) + y^(2) = 1 ` subtend a right angle at a point P . Then the locus of P is _

A

`x^(2) +y^(2) = 1 `

B

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

C

`x^(2) + y^(2) = 4 `

D

`x^(2)+ y^(2) = 8 `

Text Solution

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The correct Answer is:
D
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