TS EAMCET · Maths · Circle
The equations of the tangents drawn from the origin to the circle \(x^2+y^2+2 g x+2 f y+g^2=0\) are
- A \(x=0,\left(g^2+f^2\right) x-2 g f y=0\)
- B \(x=0,\left(g^2-f^2\right) x-2 g f y=0\)
- C \(y=0,\left(g^2-f^2\right) y-2 g f x=0\)
- D \(y=0,\left(g^2+f^2\right) y-2 g f x=0\)
Answer & Solution
Correct Answer
(C) \(y=0,\left(g^2-f^2\right) y-2 g f x=0\)
Step-by-step Solution
Detailed explanation
Equation of tangent drawn from origin, ' \(O\) ' of the circle is \(x^2+y^2+2 g x+2 f y+g^2=0\) or \(T^2=S S_1\)…
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