1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Trigonometry question

  1. Jan 29, 2010 #1
    1. The problem statement, all variables and given/known data

    sin90degrees +tan45degrees

    2. Relevant equations



    3. The attempt at a solution
    my answer is 0 but my textbook says its 2. I dont understand how 2 is the answer.
     
    Last edited: Jan 29, 2010
  2. jcsd
  3. Jan 29, 2010 #2
    What is sin 90°? tan 45°? How exactly did you get those answers?
     
  4. Jan 29, 2010 #3
    I am supposed to use the values from the unit circle. so sin90degrees would = -1
     
  5. Jan 29, 2010 #4

    Char. Limit

    User Avatar
    Gold Member

    Really? Make sure you're going in the right direction.
     
  6. Jan 29, 2010 #5
    oh silly mistake. thanks alot
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook