The equation of tangent drawn from the origin to the circle x 2 +y 2 –2rx –2hy + h 2 =0…
Mathematics · JEE Main · NTA Exams — Co-ordinate Geometry
The equation of tangent drawn from the origin to the circle x2 +y2 –2rx –2hy + h2 =0 is-
- y = 0
- x – y =0
- (h2 – r2) x – 2rhy =0
- None of these
Answer
(C) (h 2 – r 2 ) x – 2rhy =0
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Two points (a, 0) and (0, b) are joined by a straight line. Another point on this line is
- If the lines x + 2ay + a = 0, x + 3by + b = 0 and x + 4cy + c = 0 are concurrent, then a, b and c are in
- Let a and b be non-zero real numbers. Then, the equation (a x^ 2 +b y^ 2 +c ) (x^ 2 -5 x y+6 y^ 2 )=0…
- If the equation of the tangent to the circle x 2 + y 2 – 2x + 6y – 6 = 0 parallel to 3x – 4y + 7 = 0 is 3x –…
- The locus of the point of intersection of the tangents to the ellipse x^ 2 a^ 2 + y^ 2 b^ 2 =1 if the…
- A triangle is formed by a tangent to the ellipse x^ 2 a^ 2 + y^ 2 b^ 2 =1 and the coordinate axes. The area…
- The ratio in which the line x + y = 4 divides the line joining the points (–1, 1) and (5, 7) is 1: α then α =
- The lines x + y = |a| and ax – y = 1 intersect each other in the first quadrant. Then, the set of all…
More Co-ordinate Geometry questions · Browse all practice questions