Home
Class 11
MATHS
In a Delta, (a+b+c)(b+c-a)=lambdabc, wh...

In a ` Delta,` (a+b+c)(b+c-a)=`lambdabc,` when`lambda inI,` then greatest value of `lambda` is

Promotional Banner

Topper's Solved these Questions

  • SETS AND RELATIONS

    PATHFINDER|Exercise QUESTION BANK|56 Videos
  • STATISTICS

    PATHFINDER|Exercise QUESTION BANK|45 Videos

Similar Questions

Explore conceptually related problems

In a triangle ABC, (a+b+c)(b+c-a)=kbc if

If a, b, c are in HP and if ((a + b)/(2a - b)) + ((c + b)/(2c - b)) gt sqrt(lambdasqrt(lambdasqrt(lambda ....infty))) , then the value of lambda must be

If B(1,3) be equidistant from the point A(6,-1) and C(lambda,8) , then the value of lambda is /are -

If int (dx)/(1+sinx) = tan (x/2 - pi/lambda) + b , then the value of lambda is -

If |{:(-a^2," "ab," "ac),(" "ab,-b^2," "bc),(" "ac," "bc,-c^2):}|=lambdaa^2b^2c^2, then find the value of lambda

S , T are two foci of an ellipse and B is a one end point of minor axis . If STB be a equilateral triangle and eccentricity of the ellipse be (1)/(lambda) , then the value of lambda is _

If a \ "a n d" \ c are unit vectors and |b|=4 . The angle between a and c is cos^(-1)(1//4) and a xx b=2a xx c then, b-2c=lambdaadot The value of lambda is

Let vec a , vec ba n d vec c be three verctors such that vec a!=0,| vec a|=| vec c|=1,| vec b|=4 and | vec bxx vec c|=sqrt(15)dot If vec b-2 vec c=lambda vec a , then find the value of lambda

If vec a=a_1 hat i+a_2 hat j+a_3 hat k ; vec b=b_1 hat i+b_2 hat j+b_3 hat k , . vec c=c_1 hat i+c_2 hat j+c_3 hat k and [3 vec a+ vec b """ 3 vec b+ vec c """" 3 vec c+ vec a]=lambda[vec a vec b vec c] , then find the value of lambda/4 .

A family of curve S is given by S -= x^(2) +2xy +y^(2)-4x(1-lambda) - 4y (1+lambda) +4 , then S = 0 represents (a) pair of straight line AA lambda in R (b) straight line for exactly one value of lambda (c) parabola AA lambda in R -{0} (d) ellipse for three values of lambda

PATHFINDER-SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE-QUESTION BANK
  1. Match List - I with List-II

    Text Solution

    |

  2. Match List - I with List-II

    Text Solution

    |

  3. In a Delta, (a+b+c)(b+c-a)=lambdabc, whenlambda inI, then greatest va...

    Text Solution

    |

  4. In a Delta ABC then line joining the circumcentre to the incentre is p...

    Text Solution

    |

  5. If in a DeltaABC, a=5, b=4 and cos(A-B)=31/32, then the third side c ...

    Text Solution

    |

  6. In DeltaABC, if BC is unity, sin(A/2)=x1,sin(B/2)=x2,cos(A/2)=x3,cos(B...

    Text Solution

    |

  7. If any DeltaABC, if sinA,sinB,sinC are in A.P. and the maximum value ...

    Text Solution

    |

  8. In triangleABC (b+c)/11=(c+a)/12=(a+b)/13 then prove that (cosA)/7=(co...

    Text Solution

    |

  9. In triangle ABC if cosAcosB +sinAsinB sinC=1 then prove that a:b:c=1:1...

    Text Solution

    |

  10. If in a triangle ABC, AD, BE and CF are the attitude and R is the cir...

    Text Solution

    |

  11. If x,y,z are the perpendiculars from the vertices of a triangle ABC on...

    Text Solution

    |

  12. In a DeltaABC prove that: a^3cos(B-C)+b^3cos(C-A)+c^3cos(A-B)=3abc

    Text Solution

    |

  13. In triangle ABC, D is the mid point of side BC. If AD is perpendicular...

    Text Solution

    |

  14. For a DeltaABc, it is given that cosA +cosB+cosC=3/2. prove that the D...

    Text Solution

    |

  15. If any DeltaABC, show that : (sin^2A+sinA+1)/sinAge3

    Text Solution

    |

  16. In a DeltaABC, if cotA+cosB+cotC=sqrt3. prove that the Deltais equilat...

    Text Solution

    |

  17. Perpendiculars are drawn from the anglesA, B,C,of an acute angles Delt...

    Text Solution

    |

  18. ABCD is a trapezium such that AB,DC.are parallel and BC is perpendicul...

    Text Solution

    |

  19. For any triangle ABC, ((a+b+c)(b+c-a)(c+a-b)(a+b-c))/(4b^2c^2)is equa...

    Text Solution

    |

  20. In DeltaABC, if a =5,b=4 and cos (A-B)=31/32,then the perimeter of tr...

    Text Solution

    |