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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


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    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!
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