dan964
what

Have a try using BOS approved calculators only (no Wolfram Alpha)
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Which first part? He probably provided the differential equation to give a taste of Picard iteration. (But yeah, don't need it for the actual question.)I can see how to do it, but I don't see how the first part relates to the second --- just a bunch of fractions and expanding binominals
You could ignore most of the text in the question. All that matters is the recurrence:At least provide links to definitions of terms and notations used in the question most highschoolers wouldn't know.