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Q.

A: The equation of normal at the point  P(3,5)   to the circle x2+y210x2y+6=0    is  2x+  y=11 
R:  The equation of normal at the point P(x1,y1)   to the circle x2+y2+2gx+2fy+c=0  is  (x1g)(y+y1)=(y1f)(x+x1)
 

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a

Both A and R is true and R is not correct explanation to A

b

A is true and R is false

c

R is true and A is false 

d

Both A and R is true and R is correct explanation to A 

answer is C.

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Detailed Solution

Normal:  (x1+g)(yy1)=(y1+f)(xx1)

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