求解 5pi/18+5pi/18 | Microsoft Math Solver

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\frac{1}{9}\times 5\pi

合并 \frac{5\pi }{18} 和 \frac{5\pi }{18}，得到 \frac{1}{9}\times 5\pi 。

\frac{5}{9}\pi

将 \frac{1}{9} 与 5 相乘，得到 \frac{5}{9}。

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