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Use the first four terms of the expansion of to approximate .
[4]Find the first four terms of the series expansion of .
[3]Approximate using the first three nonzero terms of the binomial expansion of , taking .
Approximate using the first three nonzero terms of the binomial expansion of , taking .
[4]the coefficient of in the expansion of .
[5]Provide a general formula for the coefficient of in the expansion of , where is a positive integer.
[3]Expand in ascending powers of up to and including , and the interval of convergence.
[5]Expand in ascending powers of up to and including the term in .
[4]Expand in ascending powers of up to and including the term in .
[5]Find the coefficient of in the expansion of .
[3]