Home
Class 11
MATHS
IF Delta ABC,if a tan A+b tan B=(a+b) ta...

IF `Delta ABC,if a tan A+b tan B=(a+b) tan ((A+B)/2)`, then the triangle is

A

Right-angled

B

scalene

C

isosceles

D

Equailateral

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-II) (LEVEL-II) (Straight Objective Type Questions)|39 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-III) (LEVEL-I) (Straight Objective Type Questions)|42 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-I) (LEVEL-II) (Linked Comprehension Type Questions)|3 Videos

  • PLANES

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|30 Videos

  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISES|55 Videos

Similar Questions

Explore conceptually related problems

In Delta ABC , tan A + tan B+ tan C=

In Delta ABC , if tan A + tan B + tan C =3 sqrt3 then the triangle is

In Delta ABC,if tan A+ tan B + tan C= 3sqrt3 , then the triangle is

In Delta ABC, tan 2A+ tan 2B+ tan 2C=

In Delta ABC, if sin A cos B=1//4 and 3 tan A=tan B , the triangle is right angled at

In a Delta ABC , if tan A : tan B : tan C = 3 : 4 : 5, then the value of sinA.sinB.sinC is equal to

In Delta ABC, if tan B tan C+tan C tan A+tan A tan B=sqrt3 tan A tan B tan C then the triangle is

In Delta ABC, (b+c-a) tan (A//2) =

AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE SHEET (EXERCISE-II) (LEVEL-I)
  1. In Delta ABC, if cot""A/2:cot""B/2:cot""C/2=3:7:9, then a:b:c=

    Text Solution

    |

  2. In a=5,b=4 and cos(A-B)=(31)/(32) then tan C/2.

    Text Solution

    |

  3. If Delta =a^2-(b-c)^2, is the area of the triangle ABC, then tan A=

    Text Solution

    |

  4. In Delta ABC tan "" ( A)/(2) = ( 5)/( 6) , tan "" ( C )/(2) = (2)/(5...

    Text Solution

    |

  5. If the sides of a triangle are 5, 7, 8 then its area is

    Text Solution

    |

  6. In Delta ABC, if c^2=a^2+b^2,2s=a+b+c, then 4s(s-a)(s-b)(s-c)=

    Text Solution

    |

  7. If Delta is the area of triangle whose sides are a,b,c then the area o...

    Text Solution

    |

  8. if (2)/(5)(y)/(z)+(2)/(5)(z)/(x)+(2)/(5)(x)/(y),(2)/(5)(x)/(y)+(2)/(5)...

    Text Solution

    |

  9. The perimeter of a triangle is 16 cm. One of the sides is of length 6 ...

    Text Solution

    |

  10. In Delta ABC, if a= 2, B=120^@, C=30^@, then the area of the triangle ...

    Text Solution

    |

  11. P is any point inside a Delta^("le")ABC. lines are drawn through P pa...

    Text Solution

    |

  12. If DeltaABC, if "cos"(A)/(2)= sqrt((b+c)/(2c)) then

    Text Solution

    |

  13. In any Delta ABC,((a+b+c)(b+c-a)(c+a-b)(a+b-c))/(4b^2c^2)=

    Text Solution

    |

  14. In Delta ABC, if sin^2 A+sin^2 B=sin^2 C, then C=

    Text Solution

    |

  15. In Delta ABC, if sin^2 A+sin^2 B+sin^2 C =9//4, then the triangle is

    Text Solution

    |

  16. Which of the above statements is correct. I In a DeltABC if 4s(x-a)...

    Text Solution

    |

  17. Statement -I : In Delta ABC , b cos ^(2) "" ( C)/(2) + c cos ^(2) ""...

    Text Solution

    |

  18. In Delta ABC, if cos A cos B+ sin A sin B sin C=1, then the triangle i...

    Text Solution

    |

  19. IF Delta ABC,if a tan A+b tan B=(a+b) tan ((A+B)/2), then the triangle...

    Text Solution

    |

  20. In an Isosceles right angled triangle (R)/(r)=

    Text Solution

    |