If P=(x, y), F_ 1 =(3,0), F_ 2 =(-3,0) and 16 x^ 2 +25 y^ 2 =400 , then P F_ 1 +P F_ 2…
Mathematics · JEE Main · NTA Exams — Co-ordinate Geometry
If \(P=(x, y), F_{1}=(3,0), F_{2}=(-3,0) \text { and } 16 x^{2}+25 y^{2}=400\), then \(P F_{1}+P F_{2}\) equals
- 8
- 6
- 10
- 12
Answer
(C) 10
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- If the distance between the foci and the distance between the directrices of the hyperbola x^ 2 a^ 2 - y^ 2…
- The length of the diameter of the circle which touches the x-axis at the point (1, 0) and passes through the…
- Let P ^ P ( a sec , b ) and Q (a _ 1 b _ 1 ) , where + = 2 . be two points on the hyperbola x^ 2 a^ 2 - y^ 2…
- Let P(4, -4) and Q(9, 6) be two points on the parabola, y 2 = 4x and let x be any point on the arc POQ of…
- The equations of the lines through (–1, –1) and making angles 45° with the line x + y = 0 are
- The intercept on the line y = x by the circle x 2 + y 2 – 2x = 0 is AB. Equation of the circle on AB as a…
- If the parabolas y^ 2 =4 b(x-c) and y^ 2 = tax have a common normal, then which one of the following is a…
- Coordinates of the focus of the parabola x 2 – 4x – 8y – 4 = 0 are
More Co-ordinate Geometry questions · Browse all practice questions