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One more trig problem

  1. Feb 9, 2005 #1
    one more trig problem!!!

    Ok heres the only question i cant figure out on my assignment:

    Determine the larger angle A in the range 0<A<2pie. Round answer to 4 decimal places.

    csc A = 5.7023

    A = ________(radians)


    what i did was pie-5.7023 but that didnt give the correct answer

    help please
     
  2. jcsd
  3. Feb 9, 2005 #2

    dextercioby

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    U can't use the calculator directly.What's the definition of cosecant..?

    Daniel.
     
  4. Feb 9, 2005 #3
    cosecant(x)= 1/sin(x)
     
  5. Feb 9, 2005 #4
    its inverse cos
     
  6. Feb 9, 2005 #5

    dextercioby

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    No,it's inverse (one over) sinus.It's pretty delusive,but that's the definition.

    Daniel.
     
  7. Feb 9, 2005 #6
    cosecant= 1/sin
    secant=1/cos
    cot=1/tan
     
  8. Feb 9, 2005 #7
    so how do i use that to solve this question?
     
  9. Feb 9, 2005 #8

    dextercioby

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    Can u solve this equation
    [tex] \frac{1}{\sin x}=5.7023 [/tex]

    in the domain the problem is asking you to do it...?

    Daniel.
     
  10. Feb 9, 2005 #9
    Algebra is the short answer.

    1/(sin x)=a thus (sin x)=1/a

    Use the value the problem gave directly. This will yield some angle (in radians). find the second angle using the proporties of sin i.e. where in the 4 quadrants is sin + and where is it negative.
     
  11. Feb 9, 2005 #10
    how do you attach something
     
  12. Feb 9, 2005 #11

    dextercioby

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    Right below the blank "window" in which u write the text/body of the message u have the "Additional Options" menu where u'll find "Manage Attachments".Take a good look at the list of supported formats/extensions and keep in mind that anything over 50KB will not be uploaded;


    Daniel.
     
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