find the equations of the tangents to the circle x^2+y^2+20x+20y+20=0 through the origin.
find the equations of the tangents to the circle x^2+y^2+20x+20y+20=0 through the origin.
Sounak Biswas , 7 Years ago
Grade 11
Analytical Geometry> find the equations of the tangents to the...
1 Answers
Arun
Dear student
Let the tangent is
Y = mx + c
Now use condition that perpendicular from centre = radius
and also pass it through (0,0)
You will get both m and c
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