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共找到 2 与llllllllllllllllllllllllllllllllllllllllllllllllll 相关的结果，耗时15 ms
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(514:31:4)已知sin(π-a）-cos（π+a）=√2/3,且0＜a＜π,求sin（kπ+a）-cos（kπ+α）（k是整数）的值
数学
一个整数省略万位后面的尾数约是15万,这个数最大是(),最小是（）.
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数学
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