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    IanMarc's Avatar
    IanMarc Posts: 1, Reputation: 1
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    #1

    Mar 3, 2011, 03:17 AM
    Identities
    1. How do you prove sec2thetasin2theta = sec2theta - 1

    2. how do you prove secant squared theta sine squared theta = cosecant squared theta - 1?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
    		  
    #2

    Mar 3, 2011, 06:56 AM

    1.

    This is not a valid identity.

    2.

    Not valid either.
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