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# (a) Expand $1/\sqrt[4]{1 + x}$ as a power series.(b) Use part (a) to estimate $1/\sqrt [4]{1.1}$ correct to three decimal places.

## a. $\sum_{n=1}^{\infty}\left(\frac{-\frac{1}{4}}{n}\right) x^{n}$b. 0.976

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