=+21.17. 16.6 | Show that a moment generating function M(s) defined in (-so, So), 56 > 0, can be extended to a function analytic in the strip [z: - 50) < Re z < so].

If M(s) is defined in [0, 5g), so > 0, show that it can be extended to a function continuous in [ z: 0 ≤ Re z <'s ,, ] and analytic in [z: 0 < Re z < sg].