Home
Class 11
MATHS
sin^(2)""(pi)/(18)+sin^(2)""(2pi)/(18)+s...

`sin^(2)""(pi)/(18)+sin^(2)""(2pi)/(18)+sin^(2)""(4pi)/(18)+sin^(2)""(8pi)/(18)+sin^(2)""(7pi)/(18)+sin^(2)""(5pi)/(18)=`

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
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

cos^(2)""(pi)/(5)+ sin^(2)""(4pi)/(5)=

sin^(2)""(2pi)/(3)+ cos^(2)""(5pi)/6-tan^(2)""(3pi)/4=

Find the value of sin^(2)""(pi)/(10)+sin^(2)""(4pi)/(10)+sin^(2)""(6pi)/10+sin^(2)""(9pi)/10 .

"sin"^(2)pi/8" + sin"^(2)(3pi)/8" + sin"^(2)(5pi)/8" + sin"^(2)(7pi)/8=

If sin""(pi)/18 sin""(5pi)/18 sin""(7pi)/18 =

sin "" (2pi)/(7) + sin "" (4pi)/(7) + sin "" (8pi)/(7) =

AAKASH SERIES-TRIGONOMETRIC RATIOS-PRATICE SHEET (EXERCISE) (LEVEL-I(MAIN) (SINGLE ANSWER TYPE QUESTIONS)
  1. sin^(2)(51^(@)-x)+sin^(2)(39^(@)+x)=

    Text Solution

    |

  2. cos^(2)(125^(@)-x)-cos^(2)(55^(@)+x)=

    Text Solution

    |

  3. sin^(2)""(pi)/(18)+sin^(2)""(2pi)/(18)+sin^(2)""(4pi)/(18)+sin^(2)""(8...

    Text Solution

    |

  4. If alpha,beta are complementary angles and sin alpha = (3)/(5), then s...

    Text Solution

    |

  5. Which of the following is correct?

    Text Solution

    |

  6. A = tan 1,B = tan2, C = tan3, then the desending order of A,B,C is

    Text Solution

    |

  7. In a DeltaABC if cot A cot B cot C gt 0 then the triangle is

    Text Solution

    |

  8. If A,B,C are angles of a tringle such that A is obtuse then

    Text Solution

    |

  9. Minimum value of y = 256 sin^(2) x + 324 cosec^(2) x AA x in R is

    Text Solution

    |

  10. If y = (sinx + cosecx)^(2) + (cos x + sec x)^(2).then the minimum valu...

    Text Solution

    |

  11. x = asec^(3) theta tan theta , y = tan^(3) theta sec theta then sin^(2...

    Text Solution

    |

  12. If x=asec^(n)theta,y=btan^(n)theta then ((x)/(a))^(2//n)-((y)/(b))^(2/...

    Text Solution

    |

  13. The greatest value of sin^(4) theta + cos^(4) theta is

    Text Solution

    |

  14. If (sin^(4)theta)/(a)+(cos^(4)theta)/(b)=(1)/(a+b) then (sin^(8)theta...

    Text Solution

    |

  15. Observe the following lists. Let (sinx)/(a)=(cosx)/(b)=(tanx)/(c)=k. ...

    Text Solution

    |

  16. The minimum value of a tan^(2)x + b cot^(2)x equals the maximum value ...

    Text Solution

    |

  17. If f(x)=sin^(6) x + cos^(6) x for x in R , then f(x) lies in the int...

    Text Solution

    |

  18. Match the following

    Text Solution

    |

  19. The minimum value of 2costheta+(1)/(sintheta)+sqrt(2)tan theta in (0, ...

    Text Solution

    |

  20. If sec alpha and "cosec" alpha are the roots of x^(2)-px+q=0 then

    Text Solution

    |