a)find the equations of the tangent lines to the circlex^2+y^2=25 at the points where x = 4.
b) find the equations of the normal lines to this circle atthe same points . ( the normal line is perpendicular to the tangentline at that point)
c) at what points do the two normal lines intersect?
can i please get a detailed worked out solution, so i get theconcept and know how to do other problems on my own?i'd be verygrateful and give you an A.thanks!