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: Solve sinxcosx=0.458

  1. Feb 25, 2012 #1
    How would i solve sinxcosx=0.458, I cannot determine how to isolate the angle, is there a set of identities i could use? Thanks!
     
  2. jcsd
  3. Feb 25, 2012 #2

    gneill

    User Avatar

    Staff: Mentor

    There's a double angle identity that involves sin(x)*cos(x). Check your table of identities.

    ( You DO keep a table of identities handy, don't you? :wink: )
     
  4. Feb 25, 2012 #3
    Take a look at the trig identities on Wikipedia. You may find something useful. :wink:
     
  5. Feb 25, 2012 #4
    In a locket around my neck, of course, let me check
     
  6. Feb 25, 2012 #5
    found the right one, thanks!
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook