Shifting summation indices is often convenient or necessary in the power series method. Shift the index so that the power under the summation sign is X m . Check by writing the first few terms explicity. s(s+ 1) 2 s² + 1 8-2 -x³-1, -XP+4 P-1(P + 1)! Р
Chapter 5, PROBLEM SET 5.1 #15
Shifting summation indices is often convenient or necessary in the power series method. Shift the index so that the power under the summation sign is Xm. Check by writing the first few terms explicity.
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