If the line y=mx+c be a tangent to the c...

If the line `y=mx+c` be a tangent to the circle `x^2+y^2=a^2`, then the point of contact is

A

`(-a^2/c,a^2)`

B

`(a^2/c,(-a^2m)/c)`

C

`((-a^2m)/c,a^2/c)`

D

`((-a^2c)/m,a^2/m)`

Verified by Experts

Similar Questions

Explore conceptually related problems

Line y=x+asqrt2 is a tangent to the circle x^2+y^2=a^2 at

Solve the following:Show that the line 3x-4y+15=0 is a tangent to the circle x^2+y^2=9 ,Find the point of contact.

Show that the line x-y=5 is a tangent to the ellipse 9x^2+16y^2=144 . Find the point of contact.

Answer the following:Show that the line 2x+y+6=0 is a tangent to the circle, x^2+y^2+2x-2y-3=0 .Find its point of contact.

If the line ycosalpha=xsinalpha+acosalpha be a tangent to the circle x^2+y^2=a^2 , then

the equation of the tangent to the circle x^2+y^2=17 at the point (1,-4) is

Equation of tangent to the circle x^2+y^2=10 at the point with abscissa 1 is

Show that the line 3x-4y+10=0 is tangent to the hyperbola x^2-4y^2=20 . Also find the point of contact.

If y+c=0 is a tangent to the circle x^2+y^2-6x-2y+1=0 at (a,4) then

If the line y = 7x - 25 meets the circle x^(2) + y^(2) = 25 in the points A,B then the distance between A and B is