lx + my = 1 রেখাটি x² + y² – 2px = 0 বৃত্তকে স্পর্শ করলে p²m² + 2pl = কত?

The equation of the circle which touches both the axes and the line $\frac { x }{ 3 } +\frac { y }{ 4 } =1$ and lies in the first quadrant is $(x-c)^{ 2 }+(y-c)^{ 2 }={ c }^{ 2 }$ where c is ;