The indicated function y1(x) is a solution of the given differential equation. Use reduction of order or formula (5) in Section 4.2,
y2 = y1(x)
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dx (5) as instructed, to find a second solution y2(x).
y'' + 36y = 0; y1 = cos(6x)
y2 =
2) The indicated function y1(x) is a solution of the given differential equation. Use reduction of order or formula (5) in Section 4.2,
y2 = y1(x)
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dx (5) as instructed, to find a second solution y2(x).
(1 − x2)y'' + 2xy' = 0; y1 = 1
y2 =
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