[" The two circles "x^(2)+y^(2)=ax" and "x^(2)+y^(2)=c^(2)(c>0)" touch each other if : "],[[" (1) "2|a|=c," (2) "|a|=c," (3) "a=2c]]

The two circles x^(2)+y^(2)=ax, x^(2)+y^(2)=c^(2) (c gt 0) touch each other if

The two circles x^(2)+y^(2)=ax, x^(2)+y^(2)=c^(2) (c gt 0) touch each other if

The two circles x^(2)+y^(2)=ax and x^(2)+y^(2)=c^(2)(c gt 0) touch each other, if |(c )/(a )| is equal to

The two circles x^(2)+y^(2)=ax and x^(2)+y^(2)=c^(2)(c gt 0) touch each other, if |(c )/(a )| is equal to

The two circles x^2+y^2=ax and x^2+y^2=c^2 (cgt0) touch each other if

The two circles x^(2)+y^(2)-cx=0 and x^(2)+y^(2)=4 touch each other if:

The two circles x^(2)+y^(2)-cx=0 and x^(2)+y^(2)=4 touch each other if:

The two circles x^2+""y^2=""a x and x^2+""y^2=""c^2(c"">""0) touch each other if : (1) 2|a|""=""c " " (2) |a|""=""c " " (3) a""=""2c " " (4) |a|""=""2c