Home
Class 12
MATHS
If sin x+ sin y+ sin z=3, then the valu...

If `sin x+ sin y+ sin z=3, ` then the value of `(cos x+ cos y+ cos z)` is-

A

1

B

`-3`

C

`0`

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 5|89 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 7|90 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 33|1 Videos

  • MCQ ZONE 3

    CHHAYA PUBLICATION|Exercise Question Paper 8|30 Videos

  • Measures of Central Tendency

    CHHAYA PUBLICATION|Exercise Exercise 2 C Very short answer type question|18 Videos

Similar Questions

Explore conceptually related problems

If x sin y+y cos x=pi , then the value of y''(0) is -

If cos (x-y)+1=0, then the value of (cos x+ cos y) and (sin x+sin y) is-

If cos x + cos y = 2, "then the value of" sin(x + y) is-

If cos (x-y) =-1, then the values of (cos x+ cos y) and (sin x + sin y) are respectively-

If cosx + cosy + cosz = 0 "and" sinx + siny + sinz =0, "then show that" cos (x-y) + cos(y - z) + cos(z - x) = - 3/2.

The value of sin(cos^(-1)x)-cos(sin^(-1)x) is-

The value of sin(cos^(-1)x)-cos(sin^(-1)x) is

If x=a cos theta, y=a sin theta , then the value of (dy)/(dx) is -

If sin^(-1)x+sin^(-1)y+sin^(-1)z=(3pi)/(2) , then then the value of (x+y+z) is -

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 3
  1. If cos (x-y)+1=0, then the value of (cos x+ cos y) and (sin x+sin y) i...

    Text Solution

    |

  2. The measures of the sides of a triangle are 3,5 and 7 then the greates...

    Text Solution

    |

  3. If sin x+ sin y+ sin z=3, then the value of (cos x+ cos y+ cos z) is-

    Text Solution

    |

  4. If cos A = 1/7 and cos B =""13/14 where A and B both are acute angles,...

    Text Solution

    |

  5. (sec 50^(@)+tan 50^(@)) is equal to-

    Text Solution

    |

  6. The value of cosec ^(2) theta cot ^(2) theta - sec ^(2) theta tan ^(2)...

    Text Solution

    |

  7. If the angles of a triangle are in the ratio 4:1:1, then the ratio of ...

    Text Solution

    |

  8. If pi lt A lt (3pi)/(2) and tan A""=4/3, then the value of (5 sin 2A +...

    Text Solution

    |

  9. The maximum value of (4 sin ^(2)x + 3 cos ^(2) x) is-

    Text Solution

    |

  10. If sin 6 theta =32 cos ^(5) theta sin theta -32 cos ^(3) theta sin the...

    Text Solution

    |

  11. If w=x+y+z then (sin x+ sin y+ sin z- sin w) is equal to-

    Text Solution

    |

  12. If sin theta + cos theta = m and sin ^(3) theta + cos ^(3) theta =n, s...

    Text Solution

    |

  13. If alpha =(pi)/(18) radian then the value of (cos alpha + cos 2 alpha+...

    Text Solution

    |

  14. The sides of a triangle are sin alpha, cos alpha and sqrt(1+ sin alpha...

    Text Solution

    |

  15. In a triangle ABC if b=2, B=30^(@), then the area of the circumcircal ...

    Text Solution

    |

  16. The value of cot (82(1)/(2))^(@) is-

    Text Solution

    |

  17. If tan theta + sec theta=4, then the value of sin theta (0 lt theta l...

    Text Solution

    |

  18. If sin C and cos C are the two roots of the quadatic equation 2x^(2) -...

    Text Solution

    |

  19. If 11theta=90^(@), then the value of the expression tan theta tan 2 t...

    Text Solution

    |

  20. The base angles of a triangle are (22 (1)/(2))^(@)and (112 (1)/(2))^(@...

    Text Solution

    |