Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Ellipse question

2025 · 2 Apr · Shift 1 · Q30
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Ellipse
  5. /2025 · 2 Apr · Shift 1 · Q30

Ellipse question

2025 · 2 Apr · Shift 1 · Q30

JEE MainMathematicsEllipseMCQ+4 / −1
If SSS and S′S^{\prime}S′ are the foci of the ellipse x218+y29=1\frac{x^2}{18}+\frac{y^2}{9}=118x2​+9y2​=1 and P be a point on the ellipse, then min⁡(SP⋅S′P)+max⁡(SP⋅S′P)\min \left(S P \cdot S^{\prime} P\right)+\max \left(S P \cdot S^{\prime} P\right)min(SP⋅S′P)+max(SP⋅S′P) is equal to :
  1. A
    3(6+2)3(6+\sqrt{2})3(6+2​)
  2. B
    3(1+2)3(1+\sqrt{2})3(1+2​)
  3. C
    27
  4. D
    9
Next

More from Ellipse

  • If the length of the minor axis of an ellipse is equal to one fourth of the distance between the foci, then the eccentricity of the ellipse is :2025 · MCQ
  • A line passing through the point P(5​,5​) intersects the ellipse 36x2​+25y2​=1 at A and B such that (PA)⋅(PB) is maximum. Then 5(PA2+PB2) is equal to :2025 · MCQ
  • Let C be the circle of minimum area enclosing the ellipse E:a2x2​+b2y2​=1 with eccentricity 21​ and foci (±2,0). Let PQR be a variable triangle, whose vertex P is on the circle C and the…2025 · MCQ
  • The length of the latus-rectum of the ellipse, whose foci are (2,5) and (2,−3) and eccentricity is 54​, is2025 · MCQ
  • Let for two distinct values of p the lines y=x+p touch the ellipse E:42x2​+32y2​=1 at the points A and B . Let the line y=x intersect E at the points C and D . Then the area of the quadrilateral…2025 · MCQ
  • The centre of a circle C is at the centre of the ellipse E:a2x2​+ b2y2​=1,a>b. Let C pass through the foci F1​ and F2​ of E such that the circle C and the…2025 · MCQ
  • Let the length of a latus rectum of an ellipse a2x2​+b2y2​=1 be 10. If its eccentricity is the minimum value of the function f(t)=t2+t+1211​, t∈R, then a2+b2 is equal to :2025 · MCQ
  • Let p be the number of all triangles that can be formed by joining the vertices of a regular polygon P of n sides and q be the number of all quadrilaterals that can be formed by joining the vertices of P. If p + q = 126, then the…2025 · MCQ