If \( A \) and \( B \) are foci of ellipse P \( (x-2 y+3)^{2}+(8 x+...

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If \( A \) and \( B \) are foci of ellipse
P \( (x-2 y+3)^{2}+(8 x+4 y+4)^{2}=20 \) and \( P \) is any

W point on it then, \( P A+P B \)
(1) 2
(2) 4
(3) \( \sqrt{2} \)
(4) \( 2 \sqrt{2} \)
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