Home
Class 11
MATHS
Statement -I : In Delta ABC , b cos ^(2...

Statement -I : In ` Delta ABC , b cos ^(2) "" ( C)/(2) + c cos ^(2) ""( B)/(2) = s `
Statement -II ` Delta ABC , cot ""(A)/(2) = ( b+c)/( 2 ) rArr B = 90 ^(@) `
Which of the above statement is correct.

A

Both I and II are correct

B

I is true, II is false

C

I is false, II is true

D

bot I and II are fase

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • 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-III) (LEVEL-II) (Straight Objective Type Questions)|39 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-II) (LEVEL-I) |32 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, cos""(A)/(2) + sin""((B-C)/(2))=

In Delta ABC , if tan ""( A)/(2) = t cot ""(( B- C)/( 2)) , " then " t=

In Delta ABC, " if" s= 2b " then " cot "" (A)/(2) cot "" ( C)/(2) =

In Delta ABC, cot ""(A)/(2) +cot""(B)/(2) + cot""(C)/(2)=

In Delta ABC , sin"(A)/(2) + cos""((B-C)/(2))=

In Delta ABC , if cos ^(2)A +cos ^(2) B +cos ^(2) C =(3)/(4) , then the triangles is

In Delta ABC, cos""((B+2C+3A)/(2))+ cos""((A-B)/(2))=

AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE SHEET (EXERCISE-II) (LEVEL-II) (Straight Objective Type Questions)
  1. In a triangle ABC, (s-a)/11=(s-b)/12=(s-c)/13, then tan^2 (A//2)=

    Text Solution

    |

  2. In DeltaABC if a=(b-c)Sec theta then (2sqrt(bc))/(b-c)"Sin"(A)/(2)=

    Text Solution

    |

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

    Text Solution

    |

  4. In Delta ABC, if B=90^@ then tan""A/2=

    Text Solution

    |

  5. Assertion (A) : In Delta ABC if angle B = pi//2 then the diameter o...

    Text Solution

    |

  6. If cot ""(A)/(2) = 30 , Cot "" (B)/(2) = 50 , Cot "" ( C)/(2) = 70...

    Text Solution

    |

  7. In a triangle ABC=(1)/((a-b)(a-c))tan A//2+(1)/((b-c)(b-a))tanB//2+(1)...

    Text Solution

    |

  8. A triangular park is enclosed on two sides by a fence and on the third...

    Text Solution

    |

  9. If the hypotenuse of a right angled triangle is four times the length ...

    Text Solution

    |

  10. In a triangle ABC, two sides are a = 6, b = 3 and cos(A-B) =(4)/(5) th...

    Text Solution

    |

  11. If two sides of a triangle are 3 feet and 12 feet and included angle i...

    Text Solution

    |

  12. Given Delta^("le")ABC with AB=20,AC=22(1)/(2),BC=27, Points x and y ar...

    Text Solution

    |

  13. ABC is a right triangle with right angle at B, AC = 2. BC = 1 and BD i...

    Text Solution

    |

  14. A point P is inside an equilateral triangle. If the distances of P fro...

    Text Solution

    |

  15. Let POR be a triangle of area Delta with a = 2,b= (7)/(2) and c=(5)/(2...

    Text Solution

    |

  16. In DeltaABC, area of incircle : area of DeltaABC=

    Text Solution

    |

  17. The correct match for LIST-I from LIST-II. The area of a triangle ABC ...

    Text Solution

    |

  18. The sides of a triangle are in AP and its area is (3)/(5) th of area o...

    Text Solution

    |

  19. The ratio between area of a square inscribed in a circle and an equila...

    Text Solution

    |

  20. In DeltaABC, if b cos A= aCosB then the triangle is

    Text Solution

    |