All Leaving Cert Mathematics posts
  • avatar image

    Help explain geometric seq. ans c_gall

    HL 2011 Q 4(c)

    Have solution here showing

    Q(t-1)=Ae^-b(e^-b)

    then turns to

    Ae^-b(t+k)=0.5(Ae^bt)

    Can someone please explain as to where k and 0.5 come from?

    Much appreciated.

    1. avatar image

      Dazzla16

      The part where you mentioned Ae^(-b(t + k)) = 0.5(Ae^-bt) refers to Q 4(d). Maybe that was the thing that was confusing you. Q 4(d) is not part of Q 4(c) (i.e. you're not using the same equation for the two questions).

    2. avatar image

      Me

      Share files from your computer
      loader

Going to College