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Math Help - trig identities help?

  1. #1
    n22
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    trig identities help?

    Hello,
    I really need help with simplying these terms.thanks...i am having alot of trouble with
    ..(cosθsinēθ+cosēθsinθ
    rģ(cosθsinēθ+cosēθsinθ)+rtē(cosθ+sinθ)+rtē(cosθ+si nθ)+rēt)rdrdθdt



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  2. #2
    Forum Admin topsquark's Avatar
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    Re: trig identities help?

    Quote Originally Posted by n22 View Post
    Hello,
    ..(cosθsinēθ+cosēθsinθ[COLOR=#000000][FONT=Lucida Sans Unicode]
    I presume this is the part you need help with and I presume you are trying to do an integral, so do the integral over theta using individual terms. Each is a simple substitution problem.

    -Dan
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