AP EAMCET20226 Jul 2022Evening ShiftMathematicsCircleActual
The equation of tangent to the circle x^2+y^2=1 , which is perpendicular to the line y=m x+1 ; is
Options
- Ax+m y- 1+m^2 =0
- Bm x+y- 1+m^2 =0
- Cx+m y+ 1+m^2 =0
- Dm x+y+ 1+m^2 =0
Correct answer
A. x+m y- 1+m^2 =0
Step-by-step solution
The equation of tangent to the circle x^2+y^2=1 is y=m₁ x+ 1+m₁^2 The line is perpendicular to the line y=m x+1 aligned & y= -1 m x+ 1+ 1 m^2 & m y=-x+ m^2+1 & x+m y- m^2+1 =0 aligned