Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Mathematics
Chapter
Ellipse

NTA Abhyas 2020 · Mathematics · Ellipse

The line 2x + y = 3 interesects the ellipse 4x^ 2 + y^ 2 = 5 at two...

The line 2x+y=32x + y = 3 interesects the ellipse 4x2+y2=54x^{2} + y^{2} = 5 at two points. The point of intersection of the tangents to the ellipse at these points is

Options

  1. A(56,56)\left(\dfrac{5}{6}, \dfrac{5}{6}\right)
  2. B(53,56)\left(\dfrac{5}{3}, \dfrac{5}{6}\right)
  3. C(56,53)\left(\dfrac{5}{6}, \dfrac{5}{3}\right)
  4. D(53,53)\left(\dfrac{5}{3}, \dfrac{5}{3}\right)

Correct answer

C. (56,53)\left(\dfrac{5}{6}, \dfrac{5}{3}\right)

Step-by-step solution

Let the required point be (h,k).\left(h, k\right) .

Now from this point, the equation of chord of contact to the ellipse is T=0T = 0

⇒4hx+ky=5⇒ 4hx + ky = 5 which is same as 2x+y=32x + y = 3
⇒4h2=k1=53⇒h=56,k=53⇒ \dfrac{4h}{2} = \dfrac{k}{1} = \dfrac{5}{3} ⇒ h = \dfrac{5}{6}, k = \dfrac{5}{3}
⇒⇒ Point of intersection of the tangents is \left(\dfrac{5}{6}, \dfrac{5}{3}\right)$

Practice Ellipse on Quantrex Academy →

More from Ellipse

Consider the ellipse E given by (x^2)/(18) + (y^2)/(12) = 1 . Let H be the hyperbola… JEE Advanced 2026Passage: Consider the ellipses given by x^2 + 4y^2 = 1 and 4x^2 + y^2 = 1 . Question: Let… JEE Advanced 2026Let (x^2)/(f(a^2+7a+3)) + (y^2)/(f(3a+15)) = 1 represent an ellipse with major axis along… JEE Main 2026The eccentricity of an ellipse E with centre at the origin O is 3 2 and its directrices… JEE Main 2026Let x = 9 be a directrix of an ellipse E , whose centre is at the origin and eccentricity… JEE Main 2026Let a focus of the ellipse E: (x^2)/(a^2) + (y^2)/(b^2) = 1 be S(4, 0) and its… JEE Main 2026Let A be the point (3, 0) and circles with variable diameter AB touch the circle x^2 +… JEE Main 2026Let an ellipse (x^2)/(a^2) + (y^2)/(b^2) = 1 , a < b , pass through the point (4, 3) and… JEE Main 2026An ellipse has its center at (1,-2) , one focus at (3,-2) and one vertex at (5,-2) . Then… JEE Main 2026Let the ellipse E: x^ 2 144 + y^ 2 169 =1 and the hyperbola H: x^ 2 16 - y^ 2 λ^ 2 =-1… JEE Main 2026Let the length of the latus rectum of an ellipse x^ 2 a^ 2 + y^ 2 b^ 2 =1,(a>b) , be 30.… JEE Main 2026Let (h, k) lie on the circle C: x^ 2 +y^ 2 =4 and the point (2 h+1,3 k+2) lie on an… JEE Main 2026Let each of the two ellipses E_ 1 : x^ 2 a^ 2 + y^ 2 b^ 2 =1,(a>b) and E_ 2 : x^ 2 ~A^ 2… JEE Main 2026Let the line y-x=1 intersect the ellipse x^ 2 2 + y^ 2 1 =1 at the points A and B. Then… JEE Main 2026Let S and S^ be the foci of the ellipse x^ 2 25 + y^ 2 9 =1 and P(α, β) be a point on the… JEE Main 2026If the line α x+4 y= 7 , where α ∈ R , touches the ellipse 3 x^ 2 +4 y^ 2 =1 at the point… JEE Main 2026 Full Ellipse list Ellipse JEE Maths PYQsJEE Mathematics PYQs All NTA Abhyas JEE Main PYQs