Home
Class 12
MATHS
sin^(4)frac(pi)(8) + sin^(4) frac(2pi)8 ...

`sin^(4)frac(pi)(8) + sin^(4) frac(2pi)8 + sin^(4) frac(3pi)8+sin^(4) frac(4pi)(8)`
`+sin^(4)frac(5pi)(8) + sin^(4) frac(6pi)8 + sin^(4) frac(7pi)(8)=`

A

A `3/2`

B

B `5/2`

C

C 3

D

D `7/2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • AP EAMCET SOLVED PAPER 2018 ( 23-04-2019,SHIFT -1)

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise Mathematics|39 Videos

  • AP EAMCET SOLVED PAPER 2019 (22-04-2019, SHIFT-2)

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|77 Videos

Similar Questions

Explore conceptually related problems

"sin"^(4)(pi)/(16) + "sin"^(4) (3pi)/(16) + "sin"^(4) (5pi)/(16) + "sin"^(4) (7pi)/(16)=

Show that sin ^(4). (pi)/(8)+ sin ^(4) .(3pi)/(8) sin ^(4). (5pi)/(8)+sin ^(4). (7pi)/(8) =(3)/(2)

"sin"^(4)pi/8" +sin"^(4)(3pi)/8" +sin"^(4)(5pi)/8" +sin"^(4)(7pi)/8=

(ii) Find the value of sin^(2). (pi)/(4) + sin^(2). (3pi)/(4) + sin^(2). (5pi)/(4) + sin^(2). (7pi)/(4) .

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

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

cos((pi)/(4)+A) cos((pi)/(4) - B) + sin ((pi)/(4) +A) * sin((pi)/4-B)=

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

TS EAMCET PREVIOUS YEAR PAPERS-AP EAMCET SOLVED PAPER 2019-MATHEMATICS
  1. sin^(4)frac(pi)(8) + sin^(4) frac(2pi)8 + sin^(4) frac(3pi)8+sin^(4) f...

    Text Solution

    |

  2. If x: y : = tan ((pi)/15 + alpha): tan ((pi)/15 + beta): tan ((pi)/1...

    Text Solution

    |

  3. Let [ x ] denote the largest integer le x. If the number of solutions ...

    Text Solution

    |

  4. If alpha and beta are the least and the greatest values of f(x)= (sin^...

    Text Solution

    |

  5. If x in ((-pi)/2, pi/2), then log sec x =

    Text Solution

    |

  6. The area (in square units) of Delta ABC if angleA = 75^(@), angleB =...

    Text Solution

    |

  7. In Delta ABC,if 3a=b+c, then cot""B/2.cot""C/2=

    Text Solution

    |

  8. In a Delta ABC ," if " (2r(2)r(3))/(r(2)-r(1))=r(3)-r(1) then (r(1)...

    Text Solution

    |

  9. If 3hati-2hatj-hatk,2hati+3hatj-4hatk,-hati+hatj+2hatk and 4hati +5ha...

    Text Solution

    |

  10. If OA = 2hati + 2hatj+ hatk, OB = 2hati + 4hatj + 4hatk and the lengt...

    Text Solution

    |

  11. If a + xb + yc = 0, a xx b + b xx c + c xx a = 6 (bxxc) then the l...

    Text Solution

    |

  12. Let A = (alpha , 1 ,2 alpha ) , B= (3, 1,2) and C = 4 hati - hatj + 3...

    Text Solution

    |

  13. The shortest distance between the skew lines r = (6hati + 2hatj + 2h...

    Text Solution

    |

  14. If a makes an acute angle with b,r cdota = 0 and r xx b = c xx b, then...

    Text Solution

    |

  15. For a data consisting of 15 observations x(i), i=1,2,3,…,15 the follow...

    Text Solution

    |

  16. A and B each select one number at random from the distinct numbers 1, ...

    Text Solution

    |

  17. There are 3 bags A , B and C. Bag A contains 2 white and 3 black balls...

    Text Solution

    |

  18. If a random variable X has the probability distrbution given by P(X = ...

    Text Solution

    |

  19. A box contains 30 toys of same size in which 10 toys are white and all...

    Text Solution

    |

  20. The locus of the point of intersection of the lines x sin theta+(1-cos...

    Text Solution

    |