What will be the equation of the circle which touches the line x + 2y + 5 = 0 and passes through the point of intersecti
Notice that we verify x² + y² + x + 2y = 0 by full calculation: use standard identity, substitute, simplify step by step to reach x² + y² + x + 2y = 0.
Ref: NCERT Mathematics Class XI — Sets, Relations and Functions
