Question

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..