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  1. E

    Help me with double angle formula?

    it states that cosh^2(x) = 1/2(1 + cosh(2x) so.....cosh^2 (2x) = 1/2(1 + cosh(4x)......? Is this right? and another question: Is cos^2 (x) the same thing as (cos(x))^2 ?
  2. E

    When people say "trail riding" (as in a dirt bike), what do they mean?

    can you just trail ride wherever you want? like in a forest near your house? i dont get it, because there are no offroading trails near my house for dirt bikes. they are only for mountain bikes. does anyone know of offroading vehicle trails in new jersey? and im so confused because i only...
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