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| 1. |
\left. \begin{array} { l } { ( x + 1 ) ( x ^ { 2 } + 9 ) } \\ { \frac { \operatorname { cos } x } { \sqrt { 4 - \operatorname { sin } ^ { 2 } x } } } \\ { x ^ { 3 } } \\ \hline \end{array} \right. |
| Answer» | |