If $P is invested for n years at 10% compounded continuously, the future value that results after n years is given by the function S = Pe0.1n. (a) At what rate is the future value growing at any time (for any nonnegative n)? S'(n) =        (b) At what rate is the future value growing after 1 year  (n = 1)? S'(1) =

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