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Math Help - Trig identities.

  1. #1
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    Trig identities.

    show that two waveforms represented by V1 = sec(SQUARED) + cosec(SQUARED) and V2 = sec(SQUARED)x.cosec(SQUARED) are interchangeable.
    Last edited by mr fantastic; November 13th 2011 at 10:10 AM. Reason: Re-titled.
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  2. #2
    MHF Contributor Siron's Avatar
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    Re: Please help guys,,im struggling!!!

    Use the fact that \sec^2(x)=\frac{1}{\cos^2(x)} and \csc^2(x)=\frac{1}{\sin^2(x)}
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  3. #3
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    Re: Please help guys,,im struggling!!!

    youre the best siron,,but how do i write it?
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  4. #4
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    Re: Please help guys,,im struggling!!!

    Quote Originally Posted by clemski View Post
    youre the best siron,,but how do i write it?
    You're meant to make the suggested substitutions and then make an effort. Where do you get stuck?
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  5. #5
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    Re: Trig identities.

    sorry like,,but tbh i dont know how to edit cosec into the calc for a start!
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  6. #6
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    Re: Trig identities.

    Quote Originally Posted by clemski View Post
    sorry like,,but tbh i dont know how to edit cosec into the calc for a start!
    Then I suggest the old-fashioned approach - Apply what you have learned and do it by hand using algebra. Show all your work, say where you get stuck.
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