helloo i need to get an answer for this question Show that the line y = mx + c touches the circle x^2 + y^2 = a^2 if c^2 = a^2(1+m^2) it's very hard for me i need some help plz.
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Show that the line y = mx + c touches the circle x^2 + y^2 = a^2 if c^2 = a^2(1+m^2) if the line y = mx + c touches the circle(or tangent to the circle) then
Any help about this also? The point (p,q) lies on the circle x^2 + y^2 = a^2. Show that the equation of the tangent to the circle at (p,q) is px + qy = a^2
the equation of the tangent to the circle having centre at origin is given by therefore equation of the tangent
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