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定积分的几何意义圆
更新时间: 2020-10-31 00:00:00  

定积分是积分的一种,是函数f(x)在区间[a,b]上的积分和的极限。定积分的几何意义是被积函数与坐标轴围成的面积,x轴之上的部分为正,x轴之下的部分为负,根据cosx在[0,2π]区间的图像可知,正负面积相等,因此其代数和等于0。

关键词: 积分 几何 意义

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