If from any point P on the circle x 2 + y 2 + 2gx + 2fy + c = 0 tangents are drawn to the…
Mathematics · JEE Main · NTA Exams — Co-ordinate Geometry
If from any point P on the circle x2 + y2 + 2gx + 2fy + c = 0 tangents are drawn to the circle
x2 +y2 +2gx +2fy + csin2 α + (g2 + f 2) cos2 α = 0,
(α is acute) then the angle between the tangents is :
x2 +y2 +2gx +2fy + csin2 α + (g2 + f 2) cos2 α = 0,
(α is acute) then the angle between the tangents is :
- α
- 2 α
- \(\frac{\alpha}{2}\)
- none of these
Answer
(B) 2 α
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