Home
Class 12
MATHS
The point of intersection of the tangent...

The point of intersection of the tangents at the ends of the latus rectum of the parabola `y^2=4x` is_____________

Text Solution

Verified by Experts

The correct Answer is:
(-1,0)

The coordinates of extremities of the latusrectum of `y^(2) = 4x` are (1,2) and (1,-2)
Equation of tangents at these points are
`y. 2 = (4(x + 1))/(2) implies 2y = 2 (x + 1)`
and `y (-2) = (4(x + 1))/(2)`
`implies -2y = 2 (x + 1)`
`:. -2 (x + 1) = 2 (x + 1)`
`implies 0 = 4 (x + 1)`
`implies - 1 = x implies y = 0`
Therefore, the required point is (-1,0)
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PARABOLA

    IIT JEE PREVIOUS YEAR|Exercise TOPIC 2 EQUATION OF TANGENTS AND PROPERTIES (ANALYTICAL & DESCRIPTIVE )|2 Videos
  • PARABOLA

    IIT JEE PREVIOUS YEAR|Exercise TOPIC 2 EQUATION OF TANGENTS AND PROPERTIES (INTERGER)|1 Videos
  • PARABOLA

    IIT JEE PREVIOUS YEAR|Exercise TOPIC 2 EQUATION OF TANGENTS AND PROPERTIES (PASSAGE BASED PROBLEMS )|2 Videos
  • MISCELLANEOUS

    IIT JEE PREVIOUS YEAR|Exercise MISCELLANEOUS|87 Videos
  • PERMUTATIONS AND COMBINATIONS

    IIT JEE PREVIOUS YEAR|Exercise Dearrangement and Number of Divisors (Fill in the Blank )|1 Videos

Similar Questions

Explore conceptually related problems

The point of intersection of the two tangents at the ends of the latus rectum of the parabola (y+3)^(2)=8(x-2)

The equation of the latus rectum of the parabola x^(2)+4x+2y=0 is

Knowledge Check

  • The point of intersection of the tangents at the ends of the latus rectum of the prabola y^2 = 4x is

    A
    `(-1,-1)`
    B
    `(0, - 1)`
    C
    `(-1,0)`
    D
    `(1, 1)`
  • The length of the latus rectum of the parabola y^2=8x is

    A
    4
    B
    6
    C
    8
    D
    10
  • Equation of the latus rectum of the parabola 2y^(2) = 5x is

    A
    ` 8x - 5 = 0`
    B
    `8x + 5 = 0`
    C
    `5x + 8 = 0`
    D
    `5x - 8 = 0 `
  • Similar Questions

    Explore conceptually related problems

    Find the length of latus rectum of the parabola x^(2)=4x-4y .

    Find the length of the latus rectum of the parabola x^(2) = -8y .

    Find the latus rectum of the parabola x^2 = 6y .

    The length of the latus rectum of the parabola x^(2) = -28y is

    The length of the latus rectum of the parabola y^2 = 12x will be-