Home
Class 11
MATHS
In DeltaABC, a=2b,|A-B|=(pi)/(3) then an...

In `DeltaABC, a=2b,|A-B|=(pi)/(3)` then `angle C`=

A

`(pi)/(6)`

B

`(pi)/(4)`

C

`(pi)/(2)`

D

`(pi)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
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 DeltaABC, A=(2pi)/(3),b-c=3 sqrt(3) cm and area of DeltaABC=(9 sqrt(3))/(2)cm^(2) . Then BC=

If DeltaABC, ifangleC=(pi)/(3), "then"(3)/(a+b+c)-(1)/(a+c) equals

In DeltaABC if (b)/(c+a)+(c)/(a+b)=1 then

In DeltaABC, if (a+b+c)(b+c-a)=3bc , then A=

In DeltaABC, c (a cosB-b cosA)=

If angle between vec(a) and vec(b) is (pi)/(3) , then angle between 2bar(a) and -3vec(b) is

In DeltaABC , if a =4 , b = 5, c= 60 ^(@) , then C =

In triangle ABC, angle B = pi//3. " and " angle C = pi//4 . Let D divide BC inernally in the ratio 1 : 3 . Then (sin angle BAD)/(sin angle CAD) equals

AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE SHEET (EXERCISE-II) (LEVEL-I)
  1. In Delta ABC , if x=tan((B-C)/(2))tan.(A)/(2),y=tan((C-A)/(2))tan.(B)/...

    Text Solution

    |

  2. In DeltaABC, a=2b,|A-B|=(pi)/(3) then angle C=

    Text Solution

    |

  3. If in a triangle ABC, in the usual notation, 2a cos ((B-C)/(2))=b+c an...

    Text Solution

    |

  4. In DeltaABC, if C=A-B=60^(@)

    Text Solution

    |

  5. In Delta ABC, if a=13 cm, b=12 cm,c=5 cm, then sin ""A/2=

    Text Solution

    |

  6. ( a- b) ^(2) cos ^(2) ""(C ) /(2) + ( a+b) ^(2) sin ^(2) "" ( C )/(2) ...

    Text Solution

    |

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

    Text Solution

    |

  8. In Delta ABC,if 3a=b+c, then cot""B/2.cot""C/2=

    Text Solution

    |

  9. If the area of a triangle satisfies the relation Delta =a^2 -(b-c)^2, ...

    Text Solution

    |

  10. In DeltaABC, 4R "cos"(A)/(2)"cos"(B)/(2)"cos"(B)/(2)=

    Text Solution

    |

  11. In DeltaABC, the value of ("cot"(A)/(2)"cot"(B)/(2)-1)/("cot"(A)/(2)"c...

    Text Solution

    |

  12. a cos ^(2) "" ( A) /(2) + b cos ^(2) "" ( B)/(2) = c cos ^(2) "" ( C...

    Text Solution

    |

  13. In Delta ABC, if cot""A/2:cot""B/2:cot""C/2=3:7:9, then a:b:c=

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |