[" 38.If the line "hx+ky=1/" a touches the circle "],[x^(2)+y^(2)=a^(2)" then the locus of "(h,k)" is circle "],[" of radius "]

If the line hx + ky = 1 touches x^(2)+y^(2)=a^(2) , then the locus of the point (h, k) is a circle of radius

If the line hx + ky = 1 touches x^(2)+y^(2)=a^(2) , then the locus of the point (h, k) is a circle of radius

If the line y=sqrt(3)x+k touches the circle x^(2)+y^(2)=16, then find the value of k

If the line hx+ky=1 touches x^2+y^2=a^2 , then the locus of the point (h,k) is a circle of radius

The locus of th point (l,m). If the line lx+my=1 touches the circle x^(2)+y^(2)=a^(2) is

The locus of th point (l,m). If the line lx+my=1 touches the circle x^(2)+y^(2)=a^(2) is

Find k , if the line y = 2x + k touches the circle x^(2) + y^(2) - 4x - 2y =0

The locus of the point (l,m) if the line lx+my=1 touches the circles x^(2)+y^(2)=a^(2) is

Find k if line y = sqrt(3)x + k touches the circle x^(2) + y^(2) = 16.

If the chord of contact of tangents from a point P (x_1,y_1) to the circle x^2+y^2=a^2 touches the circle (x-a)^2+y^2 = a^2 , then the locus of (x_1, y_1) is :