Grade 12th passAlgebra
The two circles which pass through(0,a)and (0,-a )touch the line y=mx+c, will intersect each other at right angles if
1.a^2=c^2(2m+1)
2.a^2=c^2(2+m^2)
3.c^2=a^2(2+m^2)
4.c^2=a^2(2m+1)
The two circles which pass through(0,a)and (0,-a )touch the line y=mx+c, will intersect each other at right angles if
1.a^2=c^2(2m+1)
2.a^2=c^2(2+m^2)
3.c^2=a^2(2+m^2)
4.c^2=a^2(2m+1)
1.a^2=c^2(2m+1)
2.a^2=c^2(2+m^2)
3.c^2=a^2(2+m^2)
4.c^2=a^2(2m+1)
