For integers $n \geq 0$, let $$I_n = \int x^ne^x dx$$ Find a reduction formula for $I_n$ and then calculate $I_3$
For this question, I can find out $I_3$, but I have no idea how to find the reduction formula. Please advise me.
2026-04-15 10:08:46.1776247726
Finding a reduction formula for $\int x^ne^x dx$
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