高等数学,定积分应用,求平面图形的面积
如题所述
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详细过程如图,希望写的很清楚解决你心中的问题
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拍个清楚的
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高数不规则平面图形的面积用定积分的方式如何计算?答:高数不规则平面图形的面积用定积分的方式可以计算。设函数f(x) 在区间[a,b]上连续,将区间[a,b]分成n个子区间[x0,x1], (x1,x2], (x2,x3], …, (xn-1,xn],其中x0=a,xn=b。可知各区间的长度依次是:△x1=x1-x0,在每个子区间(xi-1,xi]中任取一点ξi(1,2,...,n),...