Home
Class 12
MATHS
In Delta ABC, if c=(a+b) sin theta and c...

In `Delta ABC, if c=(a+b) sin theta and cos theta =(ksqrtab)/(a-b)`, then the vaue of k is

A

`2 cos (C//2)`

B

`2cos (B//2)`

C

`2 cos (A//2)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1B|111 Videos

  • PROPERTIES OF TRIANGLES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1C|45 Videos

  • PROPERTIES OF TRIANGLES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) Set-4|10 Videos

  • PRODUCTS OF VECTORS

    DIPTI PUBLICATION ( AP EAMET)|Exercise Exercise 2 (Special Type Questions) SET -D|14 Videos

  • QUADRATIC EXPRESSIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 ( SPECIAL TYPE QUESTIONOS ) ( SET -4)|4 Videos

Similar Questions

Explore conceptually related problems

In Delta ABC , if c= (a+b) sin theta and cos theta = ( k sqrt (ab))/( a+b) then the value of k is

In Delta ABC, if c=(a-b) sec theta, then tan theta=

In Delta ABC, if b=(c+a) cos theta, then sin theta =

In Delta ABC, sin A + sin (B-C)=

In Delta ABC, b cos (C+ theta)+c cos (B- theta)=

In Delta ABC, sum a (sin B-sin C)=

In Delta ABC, sin A: sin B: sin C is

In Delta ABC , if ( sin A)/(4) = (sin B)/(5) = (sin C)/( 6) then the value of cos A +cos B +cos C =

In Delta ABC, if a(b cos C+ c cos B)=2ka^2 , then k =

In Delta ABC , sum a (sin B - sin C)

DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1A
  1. In Delta ABC, if b=(c+a) cos theta, then sin theta=

    Text Solution

    |

  2. In Delta ABC, if c=(a-b) sec theta, then tan theta=

    Text Solution

    |

  3. In Delta ABC, if c=(a+b) sin theta and cos theta =(ksqrtab)/(a-b), the...

    Text Solution

    |

  4. In Delta ABC, if a(b cos C+ c cos B)=2ka^2, then k =

    Text Solution

    |

  5. In Delta ABC, if tan theta =(a+b)/(a-b) tan""C/2, then c=

    Text Solution

    |

  6. If tan.(C-A)/(2)=k cot.(B)/(2) then find k .

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. In Delta ABC, if a,b,c are in A.P, then tan""A/2 tan""C/2=

    Text Solution

    |

  10. In Delta ABC, if tan""A/2,tan""B/2, tan""C/2 are in H.P, then a,b,c ar...

    Text Solution

    |

  11. In Delta ABC, if a/c=(sin(A-B))/(sin (B-C)), then a^2,b^2,c^2 are in

    Text Solution

    |

  12. In Delta ABC, if cot""A/2,cot""B/2,cot""C/2 are in A.P. then a,b,c are...

    Text Solution

    |

  13. In Delta ABC, if sin^2""A/2, sin^2""B/2,sin^2""C/2 are in H.P, then a,...

    Text Solution

    |

  14. In Delta ABC, if a cos^2""C/2+c cos^2""A/2=(3b)/2 then a,b,c are in

    Text Solution

    |

  15. In Delta ABC, if tan""A/2=5/6, tan""C/2=2/5 then

    Text Solution

    |

  16. If tan.(A)/(2)=(5)/(6)andtan.(C)/(2)=(2)/(5) then determine the relati...

    Text Solution

    |

  17. In Delta ABC, if 3 tan ""A/2 tan""C/2=1 then a,b,c are in

    Text Solution

    |

  18. In Delta ABC, if tan A, tan B, tan C are in H.P., then a^2,b^2,c^2 are...

    Text Solution

    |

  19. In Delta ABC, if sin A: sin C=sin (A-B): sin (B-C), then a^2,b^2,c^2 a...

    Text Solution

    |

  20. If the angles A,B,C of a triangle are in A.P and sides a,b,c are in G....

    Text Solution

    |