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I have to adjust the variables A, B and C so the following function's value: y = A*e^(-Bx)*cos(Cx), is: -7 when x=0, 4,86 when x = 2 0,00 when x = 8 Help? I believe that e^-Bx will never equal 0, so either A or cos(Cx) will have to equal 0 somehow when x=8..
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