Results 1 to 2 of 2

Math Help - Trigonometry Final Exam Questionaire

  1. #1
    Senior Member
    Joined
    Jul 2006
    From
    Shabu City
    Posts
    381

    Trigonometry Final Exam Questionaire

    Hello were done with our exam and was willing to check these answers:
    8.) FInd an equation with roots:
    -1,
    1/2 + Squareroot of 3 over 2,
    and
    1/2 - (squareroot of 3 over 2)i < (imaginary no)

    9.) Find the misssing parts of the spherical triangle if the following parts are given:
    c = 90degrees, b = 50degrees, A = 70degrees

    thanks very much!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    9
    Quote Originally Posted by ^_^Engineer_Adam^_^ View Post
    Hello were done with our exam and was willing to check these answers:
    8.) FInd an equation with roots:
    -1,
    1/2 + Squareroot of 3 over 2,
    and
    1/2 - (squareroot of 3 over 2)i < (imaginary no)
    The theorem about factors says that,
    (x-(-1))=(x+1) is a factor
    (x-(1/2+sqrt(3)/2 i)) is a factor
    (x-(1/2-sqrt(3)/2 i)) is a factor.
    Thus,
    (x+1)(x-1/2+sqrt(3)/2 i)(x-1/2-sqrt(3)/2 i)
    Is a polynomial that has these roots (though it is not unique).
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Final Exam Help:/ ?
    Posted in the Algebra Forum
    Replies: 2
    Last Post: May 25th 2010, 05:17 PM
  2. Final exam tomorrow, need help!
    Posted in the Calculus Forum
    Replies: 3
    Last Post: May 4th 2010, 06:11 PM
  3. Help Preparing for Final Exam
    Posted in the Number Theory Forum
    Replies: 19
    Last Post: August 4th 2009, 01:11 PM
  4. Final Exam Review - Help
    Posted in the Algebra Forum
    Replies: 5
    Last Post: May 10th 2009, 08:45 PM
  5. final exam help >.<
    Posted in the Math Topics Forum
    Replies: 6
    Last Post: May 3rd 2007, 03:15 PM

Search Tags


/mathhelpforum @mathhelpforum