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Math Help - Fundamental Trigonometric Identities - Help Needed

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    Fundamental Trigonometric Identities - Help Needed

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    Super Member Matt Westwood's Avatar
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    Some of this might help ...

    Trigonometric Identities - Proofwiki.org
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    Member sinewave85's Avatar
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    Quote Originally Posted by Untitled7 View Post
    Ok, the best general advice I can give you on these kinds of problems is to know all of the basic identities cold so you can better see what will work where. For instance, on number 3, do you see how you can use this identity?

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