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An ellipse E has its center C(3,1), focu...

An ellipse E has its center C(3,1), focus at (3,6) and passing through the point P(7,4) Q. If the normal at a variable point on the ellipse (E) meets its exes in Q and R, then the locus of the mis-point of QR is a conic with eccentricity `(e_1)`, then

A

20

B

45

C

40

D

90

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A
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