18. Prove that S'essolo) dx (Hint: By induction. Write = (+)* 2 dx = L'efolk) eS,(x)...

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18. Prove that S'essolo) dx (Hint: By induction. Write = (+)* 2 dx = L'efolk) eS,(x) dx = -fe if J is one of these intervals.) ets-(x)R(x) dx Break up the unit interval into 21 equal subintervals on each of which R-1 is constant. Show that 1 5. dx = (^ + e^") fc (~ + ) eS-1(x) dx 18. Prove that S'essolo) dx (Hint: By induction. Write = (+)* 2 dx = L'efolk) eS,(x) dx = -fe if J is one of these intervals.) ets-(x)R(x) dx Break up the unit interval into 21 equal subintervals on each of which R-1 is constant. Show that 1 5. dx = (^ + e^") fc (~ + ) eS-1(x) dx