Home
Class 11
MATHS
If sin^2theta1+sin^2theta2+sin^2theta3=0...

If `sin^2theta_1+sin^2theta_2+sin^2theta_3=0,` then which of the following is not the possible value of `costheta_1+costheta_2+costheta_3?` (a) `3` (b) `-3` (c) `-1` (d) `-2`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • STRAIGHT LINES

    CENGAGE ENGLISH|Exercise All Questions|491 Videos

Similar Questions

Explore conceptually related problems

If sin^2theta_1+sin^2theta_2+sin^2theta_3=0, then which of the following is not the possible value of costheta_1+costheta_2+costheta_3? 3 (b) -3 (c) -1 (d) -2

If sin^2theta_1+sin^2theta_2+...+sin^2theta_n=0 , then find the minimum value of costheta_1+costheta_2+...+costheta_n .

2sin^(2)theta + 3 costheta =0

Solve: sin^(2)theta+2costheta+1/4=0

Solve: sin2theta+sin4theta=costheta+cos3theta

If costheta=(1)/(2) ,then find the value of 4cos^(3)theta-3costheta .

If sintheta-3sin2theta+sin3theta=costheta-3cos2theta+cos3theta , then one of the general value is:

If sintheta_1+sintheta_2+sintheta_3=3, then costheta_1+costheta_2+costheta_3 is equal to 3 (b) 2 (c) 1 (d) 0

If sintheta_1+sintheta_2+sintheta_3=3, then costheta_1+costheta_2+costheta_3 is equal to (a) 3 (b) 2 (c) 1 (d) 0

If 5 tan theta = 4 , find the value of : (8 sin theta-3costheta)/(8 sin theta+2costheta)

CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
  1. A B C is an equilateral triangle of side 4c mdot If R , r, a n d,h are...

    Text Solution

    |

  2. The total number of solutions of loge |sin x| = -x^2 +2x in [0,pi] is...

    Text Solution

    |

  3. If sin^2theta1+sin^2theta2+sin^2theta3=0, then which of the following ...

    Text Solution

    |

  4. The length of the shadow of a vertical pole of height h , thrown by th...

    Text Solution

    |

  5. For real values of 'x' , Which of the following is/are always positiv...

    Text Solution

    |

  6. The total number of solution of sin{x}=cos{x} (where {} denotes the fr...

    Text Solution

    |

  7. In triangle A B C , let /c=pi/2dot If r is the inradius and R is circu...

    Text Solution

    |

  8. If tan^3A+tan^3B+tan^3C=3tanA* tanB*tanC , then prove that triangle A...

    Text Solution

    |

  9. Find the value of x for which 3cosx=x^2-8x+19 holds good.

    Text Solution

    |

  10. The set of all x in ((-pi)/2,pi/2) satisfying |4sinx-1| < sqrt(5) ...

    Text Solution

    |

  11. a triangle A B C with fixed base B C , the vertex A moves such that co...

    Text Solution

    |

  12. Prove that tan70^0=2tan50^0+tan20^0

    Text Solution

    |

  13. Show that the equation sintheta=x+1/x is not possible if x is real.

    Text Solution

    |

  14. Solve: 2sin^2x+sin^2 2x=2

    Text Solution

    |

  15. In a triangle PQR, P is the largest angle and cosP=1/3. Further the in...

    Text Solution

    |

  16. The upper 3/4 th portion of a vertical pole subtends an angle theta su...

    Text Solution

    |

  17. Solve (log)(tanx)(2+4cos^2x)=2

    Text Solution

    |

  18. If f(x)=cos^2x+s e c^2x ,t h e n f(x)<1 (b) f(x)=1 (c) 2ltf(...

    Text Solution

    |

  19. prove that sintheta.sec3theta+sin3theta.sec3^2theta+sin3^2theta.sec3^3...

    Text Solution

    |

  20. Solve 4cot2theta=cot^2theta-tan^2theta

    Text Solution

    |