Home
Class 12
MATHS
Let p,q,r be the altitudes of a triangle...

Let p,q,r be the altitudes of a triangle with area S and perimeter 2t. The the value of `(1)/(p)+(1)/(q)+(1)/(r)` is

A

`(S)/(t)`

B

`(t)/(S)`

C

`(s)/(2t)`

D

`(2S)/(t)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2011

    WB JEE PREVIOUS YEAR PAPER|Exercise MULTIPLE CHOICE QUESTIONS|80 Videos

  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise MULTIPLE CHOICE QUESTIONS|80 Videos

Similar Questions

Explore conceptually related problems

Let p , q , r be the altiudes of triangles with area s and perimeter 2 t . Then the value of (1)/(p)+(1)/(q)+(1)/(r) is _

Let p,q,r be the altitudes of a triangle with area s and perimeter 2t. Then the value of 1/p+1/q+1/r is

P_(1), P_(2), P_(3) are altitudes of a triangle ABC from the vertices A, B, C and Delta is the area of the triangle, The value of 1/p_(1)^(2) + 1/p_(2)^(2) + 1/p_(3)^(2) is equal to-

P_(1), P_(2), P_(3) are altitudes of a triangle ABC from the vertices A, B, C and Delta is the area of the triangle, The value of P_(1)^(-1) + P_(2)^(-1) + P_(3)^(-1) is equal to-

If p,q,r three complex nos. so that p+q+r =0 and abs(p)=abs(q)=absr=1 then the value of (1/p+1/q+1/r) is

If p_1,p_2,p_3 are altitudes of a triangle ABC from the vertices A,B,C respectively and Delta is the area of the triangle and s is semi perimeter of the triangle The value of cosA/p_1+cosB/p_2+cosC/p_3 is

If P_1,P_2,P_3 be the altitudes of a triangle from the vertices A,B,C Respectively and Delta be the area the triangle, then prove that 1/P_1^2+1/P_2^2+1/P_3^3=(cotA+cotB+cotC)/Delta .

If the lengths of the perpendiculars from the vertices of a triangle ABC on the opposite sides are p_(1), p_(2), p_(3) then prove that (1)/(p_(1)) + (1)/(p_(2)) + (1)/(p_(3)) = (1)/(r) = (1)/(r_(1)) + (1)/(r_(2)) + (1)/(r_(3)) .

Let p , q , r in R^(+) and 27pqr ge (p+q+r)^(3) and 3p+4q+5r=12 . Then the value of 8p+4q-7r=

The base vertices of an isosceles triangle PQR are Q (1,3) and R(-2, 7). The vertex P can be-

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2012-MULTIPLE CHOICE QUESTIONS
  1. The coefficient of x^(10) in the expansion of 1+(1+x)+...+(1+x)^(20) i...

    Text Solution

    |

  2. Examine the consistency of the system of equations x+ y +z=1 2x+...

    Text Solution

    |

  3. Let A and B be two events with P(A^(C))=-0.3, P(B)=0.4 and )P(A nn B^(...

    Text Solution

    |

  4. Let p,q,r be the altitudes of a triangle with area S and perimeter 2t....

    Text Solution

    |

  5. Let C(1) and C(2) denote the centres of the circles x^(2)+y^(2)=4 and ...

    Text Solution

    |

  6. A straight line through the point of intersection of the lines x+2y+4=...

    Text Solution

    |

  7. Let P and Q be the points on the parabola y^(2)=4x so that the lines ...

    Text Solution

    |

  8. The incentre of an equilateral triangle is (1,1) and the equation of o...

    Text Solution

    |

  9. The value of lim(x to oo) ((n!)^((1)/(n)))/(n) is

    Text Solution

    |

  10. The area of the region bounded by the curves y=x^(3), y=(1)/(x),x=2 is

    Text Solution

    |

  11. Let y be the solution of the differential equation x(dy)/(dx)=(y^(2))/...

    Text Solution

    |

  12. The area of the region bounded by the curves y=sin^(-1), x+x(1-x) and ...

    Text Solution

    |

  13. The value of the integral int(1)^(5)[|x-3|+|1-x|]dx is equal to

    Text Solution

    |

  14. If f(x) and g(x) are twice differentiable functions on (0,3) satisfyin...

    Text Solution

    |

  15. Let [x] denote the greates integer less than or equal to x, then the v...

    Text Solution

    |

  16. The points representing the complex number z for which arg ((z-2)/(z+2...

    Text Solution

    |

  17. Let a,b,c,p,q,r be positive real numbers such that a,b,c are in G.P an...

    Text Solution

    |

  18. Let S(k) be the sum of an infinite G.P series whose first is k and com...

    Text Solution

    |

  19. The quadratic equation 2x^(2)-(a^(3)+8a-1)x+a^(2)-4a=0 possesses roots...

    Text Solution

    |

  20. If log(e)(x^(2)-16) le log(e)(4x-11), then

    Text Solution

    |