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Unformatted text preview: a + ib . Remember what e a + ib x means. In (b) the root is repeated, so e rx does not give two fundamental solutions. Back to problem 1 Hints for Q2. Use variation of parameters. Back to problem 2 Hints for Q3. Use method of undetermined coeFcients. It would be wise to solve the homogeneous equation ﬁrst. Back to problem 3 Hints for Q4. Reduction of order! Back to problem 4...
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- Spring '08
- Complex number, linearly independent solution, Initial value problems, homogeneous equation ﬁrst