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A line passing through origin O(0,0) interescts the two concen
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A line passing through origin O(0,0) interescts the two concentrric circles of radii a and b at P and Q , respectively. If lines parallel to x-axis and y-axis through Q and P respectively, meet at poin R, then find the locus of R.

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A line passing through origin O(0,0) interescts the two concentrric circles of radii a and b at P and Q , respectively. If lines parallel to x-axis and y-axis through Q and P respectively, meet at poin R, then find the locus of R.
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Question Text
A line passing through origin O(0,0) interescts the two concentrric circles of radii a and b at P and Q , respectively. If lines parallel to x-axis and y-axis through Q and P respectively, meet at poin R, then find the locus of R.