Home
Class 12
MATHS
P is a variable point on the curve y= f(...

P is a variable point on the curve y= f(x) and A is a fixed point in the plane not lying on the curve. If `PA^(2)` is minimum, then the angle between PA and the tangent at P is

Promotional Banner

Topper's Solved these Questions

  • Maxima and Minima

    A DAS GUPTA|Exercise EXERCISE|59 Videos
  • Main Tests

    A DAS GUPTA|Exercise Exercise|8 Videos
  • Miscellaneous Exercises

    A DAS GUPTA|Exercise Exercise|77 Videos

Similar Questions

Explore conceptually related problems

Let (a,b) and (lambda,u) be two points on the curve y=f(x). If the slope of the tangent to the curve at (x,y) be?

Let a curve P:(y-2)^2=x-1 If a tangent is drawn to the curve P at the point whose ordinate is 3 then the area between the tangent , curve and x-asis is

If ABCD is a square incribed in a circle and PA is a tangent, then the angle between the lines P'A and P'B is _________.

The minimum distance between a point on the curve y=e^(x) and a point on the curve y=log_(e)x is

The minimum distance between a point on the curve y=e^(x) and a point on the curve y=log_(e)x is -

A curve y=f(x) passes through the point P(1,1) . The normal to the curve at P is a(y-1)+(x-1)=0 . If the slope of the tangent at any point on the curve is proportional to the ordinate of the point. Determine the equation of the curve. Also obtain the area bounded by the y-axis, the curve and the normal to the curve at P .

Let f (x) = [{:(1-x,,, 0 le x le 1),(0,,, 1 lt x le 2 and g (x) = int_(0)^(x) f (t)dt.),( (2-x)^(2),,, 2 lt x le 3):} Let the tangent to the curve y = g( x) at point P whose abscissa is 5/2 cuts x-axis in point Q. Let the pependiculat from point Q on x-axis meets the curve y =g (x) in point R. If 'theta' be the angle between tangents to the curve y =g (x) at point P and R, then tan theta equals to :

Consider f(x)=int_(1)^(x)(t+(1)/(t))dt and g(x)=f'(x) If P is a point on the curve y=f(x) such that the tangent to this curve at P is parallel to the chord joining the point ((1)/(2),g((1)/(2))) and (3,g(3)) of the curve then the coordinates of the point P

A DAS GUPTA-Maxima and Minima-EXERCISE
  1. What is the area of the largest triangle that can be inscribed in a se...

    Text Solution

    |

  2. x and y be two variables such that xgt0 and xy=1. Then the minimum val...

    Text Solution

    |

  3. The value of a so that the sum of the squares of the roots of the equa...

    Text Solution

    |

  4. Twenty metres of wire is available for fencing off a flower-bed in ...

    Text Solution

    |

  5. The total cost of making n pocket radios per day is Rs{(n^2)/4 +35n + ...

    Text Solution

    |

  6. A telephone company in a town has 500 subscribers on its list and c...

    Text Solution

    |

  7. If P(x) = a 0 + a 1 x ^(2) + a 2 x^(4) + … + a n x ^(2n) is a polyn...

    Text Solution

    |

  8. Find the minimum length of radius vector of the curve (a^2)/(x^2)+(b^...

    Text Solution

    |

  9. A right cylindrical vessel of a given capacity is formed using least p...

    Text Solution

    |

  10. Let f(x) =(x-1)^p.(x-2)^q where p > 1, q > 1. Each critical point of f...

    Text Solution

    |

  11. The point (0, 3) is closest to the curve x^2 = 2y at

    Text Solution

    |

  12. For the function f(x)=xe^x, the point

    Text Solution

    |

  13. Let f(x) be a function such that f'(a) ne 0 . Then , at x=a, f(x)

    Text Solution

    |

  14. N Characters of information are held on magnetic tape, in batches of x...

    Text Solution

    |

  15. The function f(x) = x^2+a/xcannot have a maximum at x = -3 for any rea...

    Text Solution

    |

  16. Find the maximum slope of the curve y=-x^3+3x^2+2x-27 .

    Text Solution

    |

  17. Two points A(1, 4) & B(3, 0) are given on the ellipse 2x^(2) + y^(2) =...

    Text Solution

    |

  18. If f(x)=alog|x|+b x^2+x has its extremum values at x=-1a n dx=2, then ...

    Text Solution

    |

  19. P is a variable point on the curve y= f(x) and A is a fixed point in...

    Text Solution

    |

  20. The fuel charges for running a train are proportional to the square of...

    Text Solution

    |