Question

Find at what points on the circle x^2 + y^2 = 13, the tangent is parallel to the line 2x + 3y = 7

Answer 1

let the pt be (a,b). find dy/dx of circle at the pt
(a,b).now compare with the slipe of the line ie
-2/3.get a in terms of b.put the value in the circle .get the reqd pt