作业帮一道微积分题A baker is creating a birthday cake.The base of the cake is the region R in the first quadrant under the graph of y=f(x) for 0
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一道微积分题A baker is creating a birthday cake.The base of the cake is the region R in the first quadrant under the graph of y=f(x) for 0
一道微积分题
A baker is creating a birthday cake.The base of the cake is the region R in the first quadrant under the graph of y=f(x) for 0
一道微积分题A baker is creating a birthday cake.The base of the cake is the region R in the first quadrant under the graph of y=f(x) for 0
（c）问是求蛋糕底面的周长,30是x轴上的距离,后面积分部分求的是0-30之间正弦线的弧长,积分号下的意思就是弧长公式（s=∫√[1+(f'(x))^2]dx0）,在高数课本上有的.
（b）问是求体积的.积分算体积就是把底面给分成x型或y型,然后由积分计算.具体的问题用具体的方法吧,我也说不清楚.不过可以用定积分,二重积分,三重积分算体积,不同的方法之间有很大差别.