Questions
The equation of the circle which touches the axes of the coordinates and the line and whose centre lies in the first quadrant is
where is
detailed solution
Correct option is A
The equation of a circle touching the coordinate axes is (x−c)2+(y−c)2=c2This touches x3+y4=1, i.e. 4x+3y−12=0∴ 4c+3c−1242+32=c⇒|7c−12|=5c⇒c=6,1Thus, the equation of the required circle is x2+y2−2cx−2cy+c2=0, where c=1,6Talk to our academic expert!
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