Home
Class 11
MATHS
Find the value of sin 105^(@)...

Find the value of
sin `105^(@)`

Text Solution

Verified by Experts

The correct Answer is:
`(sqrt(3) + 1)/(2sqrt(2))`
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    SURA PUBLICATION|Exercise EXERCISE 3.5|14 Videos

  • TRIGONOMETRY

    SURA PUBLICATION|Exercise EXERCISE 3.6|21 Videos

  • TRIGONOMETRY

    SURA PUBLICATION|Exercise EXERCISE 3.3|17 Videos

  • SURAS MODEL QUESTION PAPER -2

    SURA PUBLICATION|Exercise section -IV|7 Videos

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS - SECTION - D|3 Videos

Similar Questions

Explore conceptually related problems

Find the value of sin 120^(@)

find the value of sin 15^@

Find the value of tan 105^(@) .

Find the value of cos 105^(@)

SURA PUBLICATION-TRIGONOMETRY-EXERCISE 3.4
  1. Find sin (x - y) given that sin x = (8)/(17) with 0lt x lt (pi)/(2) an...

    Text Solution

    |

  2. Find the value of cos 105^(@)

    Text Solution

    |

  3. Find the value of sin 105^(@)

    Text Solution

    |

  4. Find the value of tan (7pi)/(12)

    Text Solution

    |

  5. Prove that cos (30^(@) + x) = (sqrt(3) cos x - sin x)/(2)

    Text Solution

    |

  6. Prove that cos (pi + theta) = - cos theta

    Text Solution

    |

  7. Prove that sin (pi + theta) = - sin theta

    Text Solution

    |

  8. Find a quadratic equation whose roots are sin 15^(@) and cos 15^(@)

    Text Solution

    |

  9. Expand cos ( A + B + C). Hence prove that cos A cos B cos C = sin A si...

    Text Solution

    |

  10. Prove that sin (45^(@) + theta) - sin (45^(@) - theta) = sqrt(2) sin...

    Text Solution

    |

  11. Prove that sin (30^(@) + theta) + cos (60^(@) + theta) = cos theta

    Text Solution

    |

  12. If a cos (x + y) = b cos (x - y), show that (a + b)tan x = (a - b) cot...

    Text Solution

    |

  13. Prove that sin 105^(@) + cos 105^(@) = cos 45^(@)

    Text Solution

    |

  14. Prove that sin 75^(@) - sin 15^(@) = cos 105^(@) + cos 15^(@)

    Text Solution

    |

  15. Show that tan 75^(@) + cot 75^(@) = 4

    Text Solution

    |

  16. Prove that cos (A + B) cos C - cos (B + C) cos A = sin B sin (C - A)

    Text Solution

    |

  17. Prove that sin (n + 1)theta sin (n - 1) theta + cos (n + 1)theta cos (...

    Text Solution

    |

  18. If x cos theta = y cos (theta + (2pi)/(3))= z cos (theta + (4pi)/(3)) ...

    Text Solution

    |

  19. Prove that sin ( A + B) sin (A - B) = sin^(2) A - sin^(2)B.

    Text Solution

    |

  20. Prove that cos (A + B) cos (A - B) = cos^(2) A - sin^(2) B = cos^(2) ...

    Text Solution

    |