Question: 3.6.11

First we calculate the cofactors of A, arranging o...

Question: 7.6.3

In Example 2 we found that the coefficient matrix ...

Question: 11.1.4

If we assume a solution of the form
y = \su...

Question: 11.1.3

We make the usual substitutions y = \sum{c_...

Question: 11.1.2

As before, we substitute
y = \sum\limits_{n...

Question: 11.1.1

We substitute the series
y = \sum\limits_{n...

Question: 11.3.5

In the form of (17), Eq. (28) becomes
y^{″}...

Question: 11.3.4

First we divide each term by 2x² to put the equati...

Question: 11.2.7

We make the usual substitution of the power series...

Question: 11.2.6

We need a general solution of the form \sum...

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