Home
Class 10
MATHS
A,B,C,D are the angles of a cyclic quard...

A,B,C,D are the angles of a cyclic quardrilateral ABCD , what is the value of cos A+cos B + cos C + cos D ?

Text Solution

Verified by Experts

The correct Answer is:
0
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    MCGROW HILL PUBLICATION|Exercise Multiple Choice Questions|50 Videos

  • TRANSPARENT PAPER FOLDING

    MCGROW HILL PUBLICATION|Exercise EXAMPLE|2 Videos

  • VERIFICATION OF TRUTH OF THE STATEMENT

    MCGROW HILL PUBLICATION|Exercise Exercise|25 Videos

Similar Questions

Explore conceptually related problems

In a cyclic quadrilateral ABCD, the value of 2+sum cos A soc B, is

if ABCD is a cyclic quadrilateral, then find the value of cosA cosB - cos C cos D.

If ABCD is a cyclic quadrilateral,then the value of cos A-cos B+cos C-cos D is

If A,B,C,D are the angles of a cyclic quadrilateral and cos A+cos B= K(cos C + cos D), then the value of K is

If A,B,C,D are angles of a cyclic quadrilateral,then prove that cos A+cos B+cos C+cos D=0

If A,B,C,D are angles of a cyclic quadrilateral,prove that cos A+cos B+cos C+cos D=0

MA.B.C.D are the angles of a cyclic quadrilateral then cos 'fr cos B+cos C-cos D=

If A,B,C,D be the angles of a quadrilateral , what is the value of (sin(A+B))/(sin (C+D)) +(cos(C+D))/(cos (A+B))

If A,B,C are the angles of triangle ABC, then the minimum value of |{:(-2,cos C , cos B),(cos C , -1, cos A ) , (cos B , cos A , -1):}| is equal to :

If A,B,C are the angles of triangle ABC, then the minimum value of |{:(-2,cos C , cos B),(cos C , -1, cos A ) , (cos B , cos A , -1):}| is equal to :

MCGROW HILL PUBLICATION-TRIGONOMETRY-Multiple Choice Questions
  1. A,B,C,D are the angles of a cyclic quardrilateral ABCD , what is the v...

    Text Solution

    |

  2. The value of cos 10^@ sin 20^@ is .

    Text Solution

    |

  3. The value of sec theta can

    Text Solution

    |

  4. The value of sin^6 theta+ cos^6 theta + 3 cos^2 theta sin^2 theta is

    Text Solution

    |

  5. The value of cos 1^@ cos 2^@ cos 3^@…..cos 179^@ is

    Text Solution

    |

  6. tan 1^@ tan2^@...tan 89^@=

    Text Solution

    |

  7. Which of the following is correct ? [Hint: 1 radian = 180°/π = 57°30’ ...

    Text Solution

    |

  8. If tantheta =-4/3, then sin theta is

    Text Solution

    |

  9. If 0^@ le x le 90^@ and 1+tan^2 x - 2 tan x =0, then the value of x is

    Text Solution

    |

  10. If x is acute , then sqrt((1+sinx)/(1-sinx)) is

    Text Solution

    |

  11. The value of sin^3 alpha ( 1+cot alpha) + cos^3 alpha (1+tan alpha) i...

    Text Solution

    |

  12. If x=r cos alpha cos beta,y=r cos alpha sin beta,z=r sin alpha then x^...

    Text Solution

    |

  13. If cosalpha+cosbeta = 0=sinalpha+sinbeta, then cos2alpha+cos2beta is e...

    Text Solution

    |

  14. tan""(2pi)/(5)-tan""(pi)/(15)-sqrt3tan""(2pi)/(5)tan""(pi)/(15) is equ...

    Text Solution

    |

  15. If A +B+C= pi and m/C is obtuse then tan A. tan B is

    Text Solution

    |

  16. If tan A=1/2 and tan B=1/3 , then the value of A+B is

    Text Solution

    |

  17. The value of (sin^3 theta + cos^3 theta)/(sin theta+ costheta)+((cos^3...

    Text Solution

    |

  18. The extremum values of cos x are :

    Text Solution

    |

  19. The value of sin^2 alpha cos^2 beta + cos^2 alpha sin^2 beta + sin^2 a...

    Text Solution

    |

  20. If A= cos^(4)theta+sin^(2)theta , then for all values of theta :

    Text Solution

    |

  21. If tan theta=a/b, then the value of b cos 2theta+asin 2 theta is

    Text Solution

    |