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Let the foci of the ellipse x^2/9+y^2=1 ...

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`

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

Verified by Experts

The correct Answer is:
D
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