Home
Class 11
MATHS
If Sin theta(1) + Sin theta(2) + Sin the...

If `Sin theta_(1) + Sin theta_(2) + Sin theta_(3) = 3` then `Cos theta_(1) + Cos theta_(2) + Cos theta_(3) = `

A

0

B

1

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS

    AAKASH SERIES|Exercise PRATICE SHEET (EXERCISE) (LEVEL-II(ADVANCED) (SINGLE ANSWER TYPE QUESTIONS)|10 Videos

  • TRIGONOMETRIC RATIOS

    AAKASH SERIES|Exercise PRATICE SHEET (EXERCISE) (LEVEL-II(ADVANCED) (MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS)|5 Videos

  • TRIGONOMETRIC RATIOS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE) (LEVEL - II (ADVANCED) (MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS)|9 Videos

  • TRIGONOMETRIC EQUATIONS

    AAKASH SERIES|Exercise Practice Exercise|49 Videos

  • VECTOR (CROSS) PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise Practice Exercise|34 Videos

Similar Questions

Explore conceptually related problems

If Cos theta_(1) + Cos theta_(2) + Cos theta_(3) = 3 then Sin theta_(1) + Sin theta_(2) + Sin theta_(3) =

If theta _(1) ,theta _(2), theta _(3),.....theta _(n) are in A.P. then (sin theta_(1) + sin theta _(2 ) +...+ sin theta _(n))/( cos theta_(1) + cos theta _(2) + ...+ cos theta _(n))

If sum_(i=1)^(n)sin theta_(i)=n then cos theta_(1) + cos theta_(2) + ...+cos theta_(n)=

Show that 1/ Sin theta - Sin theta = Cot theta. Cos theta

The vertices of a triangle lie on tlhe lines y=xtan theta_(1),y=x tan theta_(2),y=x tan theta_(3) . The circumcentre is the origin. Show that the locus of the orthocentre is x(sin theta_(1)+sin theta_(2)+sin theta_(3))=y(cos theta_(1)+cos theta_(2)+cos theta_(3)) .

If sin theta + sin^(2) theta =1 then cos^(4) theta + cos^(8) theta + 2 cos^(6) theta =

Show that (1 + sin theta)/ cos theta + cos theta / (1 + sin theta) = 2 sec theta

If cos theta - sin theta = sqrt(2) sin theta " then " cos theta + sin theta =

If Sin theta + Cos theta = sqrt(3) Cos theta then 2 Cos theta - Sin theta=

AAKASH SERIES-TRIGONOMETRIC RATIOS-PRATICE SHEET (EXERCISE) (LEVEL-I(MAIN) (SINGLE ANSWER TYPE QUESTIONS)
  1. If theta lies in the first quadrant and 5 tan theta = 4 , " then "...

    Text Solution

    |

  2. If sin+cosecx = 2, then sin^(n)x +cosec^(n) x is equal to

    Text Solution

    |

  3. If Sin theta(1) + Sin theta(2) + Sin theta(3) = 3 then Cos theta(1) + ...

    Text Solution

    |

  4. If sinx + siny + sinz + sinzw = - 4. then the value of sin^(400)x + s...

    Text Solution

    |

  5. 5 sin x + 4 cos x =3 rArr 4 sin x - 5 cos x=

    Text Solution

    |

  6. If alpha, beta are complementary angles, sin alpha = (3)/(5) then cos ...

    Text Solution

    |

  7. cot^(2) theta ((sec theta -1)/(1+ sin theta ))+ sec^(2) theta ((sin th...

    Text Solution

    |

  8. If xtan^(2) 120^(@) + 4 cos^(2) 150^(@) = 9 then x =

    Text Solution

    |

  9. In Delta ABC,right angled at C, then tanA + tanB =

    Text Solution

    |

  10. The value of the expression (2sin^(2)91^(0)-1)(2sin^(2)92^(0)-1)..(2si...

    Text Solution

    |

  11. If sec^(4) theta+ sec^(2) theta = 10 +tan^(4)theta + tan^(2) theta, th...

    Text Solution

    |

  12. cosecA + cot A=(2)/(3) rArr cos A=

    Text Solution

    |

  13. sinx + sin^(2) x = 1 rArr cos^(2) x + cos^(4) x=

    Text Solution

    |

  14. cosx+cos^(2) x = 1 rArr sin^(8) x + 2sin^(6) x+sin^(4) x =

    Text Solution

    |

  15. If sin x + cos x =a then |sin x - cos x|=

    Text Solution

    |

  16. If a sin^(2) theta+bcos^(2) theta = c, then tan^(2) theta =

    Text Solution

    |

  17. (1+sinA)(1+sinB)(1+sinC) = (1-sinA)(1-sinB)(1-sinC) = k rArr k=

    Text Solution

    |

  18. If (sin alpha + "cosec" alpha )^(2) + ( cos alpha + sec alpha )^(2)=k+...

    Text Solution

    |

  19. If 1+sin x + sin^(2)x +….oo = 4 + 2sqrt(3), 0 lt x lt pi, x ne pi//2 t...

    Text Solution

    |

  20. If asec theta + b tan theta = c then ( theta + bsec theta)^(2) =

    Text Solution

    |