HARD
12th Andhra Pradesh Board
IMPORTANT
Earn 100

Find the equation and length of the common chord of the following circles: x2+y2+2x+2y+1=0,x2+y2+4x+3y+2=0.

Important Questions on System of Circle

HARD
12th Andhra Pradesh Board
IMPORTANT
Find the equation and length of the common chord of the following circles: x2+y2-5x-6y+4=0,x2+y2-2x-2=0.
HARD
12th Andhra Pradesh Board
IMPORTANT
Prove that the radical axis of the circles x2+y2+2gx+2fy+c=0 and x2+y2+2g'x+2f'y+c'=0 is the diameter of the latter circle (or the former bisects the circumference of the latter) if 2g'g-g'+2f'f-f'=c-c'.
HARD
12th Andhra Pradesh Board
IMPORTANT
Show that the circles x2+y2+2ax+c=0 and x2+y2+2by+c=0 touch each other if 1a2+1b2=1c.
HARD
12th Andhra Pradesh Board
IMPORTANT
Show that the circles x2+y2-2x=0 and x2+y2+6x-6y+2=0 touch each other. Find the coordinates of the point of contact. Is the point of contact external or internal?
HARD
12th Andhra Pradesh Board
IMPORTANT
Find the equation of the circle which cuts the following circles orthogonally: x2+y2+4x-7=0, 2x2+2y2+3x+5y-9=0,x2+y2+y=0.
HARD
12th Andhra Pradesh Board
IMPORTANT
Find the equation of the circle which cuts the following circles orthogonally: x2+y2+2x+4y+1=0,2x2+2y2+6x+8y-3=0,x2+y2-2x+6y-3=0.
HARD
12th Andhra Pradesh Board
IMPORTANT
Find the equation of the circle which cuts the following circles orthogonally: x2+y2+2x+17y+4=0,x2+y2+7x+6y+11=0,x2+y2-x+22y+3=0.
HARD
12th Andhra Pradesh Board
IMPORTANT
Find the equation of the circle which cuts the following circles orthogonally: x2+y2+4x+2y+1=0,2x2+y2+8x+6y-3=0,x2+y2+6x-2y-3=0.