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-   -   Verifying Trig Proofs (https://www.askmehelpdesk.com/showthread.php?t=198107)

  • Mar 24, 2008, 12:55 PM
    nurse89
    Verifying Trig Proofs
    Csc X - Sin X= (cot X)(cos) Solve
    Please Show Me Step By Step
  • Mar 25, 2008, 09:10 AM
    ebaines
    For problems like this it's often best to start by changing the original equation into a form consisting of only sine and cosine. Then simplify as best you can. I'll get you started:

    csc x - sin x = 1/(sin x) - sin x.

    Now multiply through by sin x/sin x:

    [1 - (sin x)^2]/sin x.

    You should be familiar with the expression 1 - (sinx)^2 is equal to. Can you take it from here?

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