Home
Class 12
MATHS
In a triangle , if r1=2r2=3r3, then a/b+...

In a triangle , if `r_1=2r_2=3r_3`, then `a/b+b/c+c/a=`

A

`(75)/(60)`

B

`(155)/(60)`

C

`(176)/(60)`

D

`(191)/(60)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    SIA PUBLICATION|Exercise Problems|41 Videos

  • QUADRATIC EXPRESSIONS AND THEORY OF EQUATIONS

    SIA PUBLICATION|Exercise Problems|71 Videos

Similar Questions

Explore conceptually related problems

If in a Delta ABC , r_1 =2r_2=3r_3, then b: c=

In Delta ABC, if 2r_1=3r_2=r_3 , then a:b:c=

In a Delta ABC , " if " r_1 = 2r_2 = 3r_3 , then a : b =

If in a triangle ABC, r_(1)=2, r_(2)=3 and r_(3) =6 then b=

In a Delta ABC , ir r_1 = 2r_2 = 3r_3 " then " (a)/(b) + ( b)/( c ) + (c )/(a) is equal to

In Delta ABC , " if " 2 r_1 = 3r_2= r_3, then a: b: c =

Assertion (A) : In a Delta ABC if r_(1)=2r_(2)=3r_(3) then a:b=5:4 Reason (R) : In a DeltaABC , if xr_(1)=yr_(2)=zr_(3)= (x+y+z) r, then a:b:c=y+z:z+x:x+y

SIA PUBLICATION-PROPERTIES OF TRIANGLES, HEIGHTS AND DISTANCES-Problems
  1. In Delta ABC if 1/(b+c)+1/(c+a)=3/(a+b+c) then C=

    Text Solution

    |

  2. Statement I : In triangleABC, b cos^2(C )/(2)+c cos^2 (B)/(2)=5, Sta...

    Text Solution

    |

  3. In a triangle , if r1=2r2=3r3, then a/b+b/c+c/a=

    Text Solution

    |

  4. From the top of a hill h meters high the angle of depressions of the t...

    Text Solution

    |

  5. If two angles of a Delta ABC are 45^@ and 60^@, then the ratio of the ...

    Text Solution

    |

  6. In a DeltaABC,(a+b+c)(tan""A/2+tan""B/2)=

    Text Solution

    |

  7. In triangleABC, with usual notation, ovserve the two statement given b...

    Text Solution

    |

  8. The angle of elevation of an object from a point P on the level ground...

    Text Solution

    |

  9. In a Delta ABC, If tan .(A)/(2)=(5)/(6) and tan .(B)/(2) =(20)/(37), ...

    Text Solution

    |

  10. The angles of a triangle are in the ratio 3:5:10. Then the ratio of th...

    Text Solution

    |

  11. If b +c =3a , then find the value of cot.(B)/(2)cot.(C)/(2)

    Text Solution

    |

  12. The elevation of an object on a hill is observed from a certain point...

    Text Solution

    |

  13. In a DeltaABC,sum(b+c)tan""A/2tan((B-C)/2)=

    Text Solution

    |

  14. Two sides of a triangle are given by the roots of the equation x^2-5x+...

    Text Solution

    |

  15. In a Delta ABC, a (cos^2 B+cos^2 C)+cos A(c cos C+b cos B)=

    Text Solution

    |

  16. A tower, of x metres high, has a flagstaff at its top. The tower and t...

    Text Solution

    |

  17. IF in a Delta ABC, r3=r1+r2+r, then angle A+ angle B=

    Text Solution

    |

  18. In a triangleABC, (a-b)^2 cos^2(C )/(2)+(a+b)^2 sin^2(C )/(2) is equal...

    Text Solution

    |

  19. In a triangleABC, the correct formulae, among the following are I r...

    Text Solution

    |

  20. An aeroplane flying with uniform speed horizontally one kilometer abov...

    Text Solution

    |