differentiate the maclaurin series for 1/(1-x) twice to find the maclaurin series of 1/(1-x)^3. Thanks
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So differentiate both sides...
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differentiate again...
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This is a series of the form...
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How did I get this? Just differentiate twice. You don't even need to all that stuff I did above. Just it's good to see it done so you know what's going on.
Differentiating twice gives you . I.e.
So summarizing...
=>