Under the CFM assumption we know that tpx=e^-tμ In the core reading it specifies that this relationship is true when t is between [0,1] But in Q5 (Sep 2005) where we are being asked to calculate 1.25q20, we do the following: 1.25q20 = 1 - 1.25p20 = 1 - e^-1.25μ and then we use the given value of μ=0.015 to evaluate this. Isn't this relationship (i.e tpx=e^-tμ) only valid when t is between [0,1]? Here t=1.25 Would anyone be able to clarify this please? Thank you
