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    antrax1988's Avatar
    antrax1988 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 8, 2009, 10:32 AM
    Solve a trigonometric equation
    34*Sin^2[x]+Sin[2*x]-8*Cos^2[x]==4

    Could someone help me with this equation?
    Thx
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Mar 8, 2009, 01:33 PM
    Try using the identities,



    Whittle it sown and use a substitution.
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