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Q)From the point A(0,3) on the circle x 2 +4x + (y-3) 2 =0 a chord AB is drawn and extended to a point P,such that AP=2AB.The locus of P is: a)x 2 +(y-3) 2 =0 b)x 2 +4x+ (y+3) 2 =0 c)x 2 +8x + (y-3) 2 =16 d)(x +4) 2 +(y-3) 2 =16 PLZ SOLVE IT........................ SIR

 
Q)From the point A(0,3) on the circle x2 +4x + (y-3)2=0 a chord AB is drawn and extended to a point P,such that AP=2AB.The locus of P is:
a)x2+(y-3)2=0
b)x2+4x+ (y+3)2 =0
c)x2+8x + (y-3)2=16
d)(x+4)2+(y-3)2=16
PLZ SOLVE IT........................
SIR 

Grade:11

2 Answers

Harsh Patodia IIT Roorkee
askIITians Faculty 907 Points
9 years ago
PLease find the answer in the image.
228-1307_Capture.JPG
Rahul tiwari
15 Points
5 years ago
Let point P(h,k)
Eqn of circle is x^2+4x+y^2-6y+9=0
Centre(-2,3) radius=2
Let coordinate of B be (a,b)
Therefore using mid point form a=h+0/2=h/2 and b=3+k/2.
Since (a,b) lies on the circle so its coordinate satisfies the eqn of circle 
Now put the coordinate of B in eqn of circle and get the answer.
 
Hope it helps..

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