V=π∫(0到1)[y-y的四次方]dy
怎么是四次方啊?第一个y是根号y的平方,y的4次方是y平方的平方哦,懂了求y=x²和x=y²所围成的图形绕y轴旋转所产生的旋转体的体积(用定积分)怎么做啊?
求y=x²和x=y²所围成的图形绕y轴旋转所产生的旋转体的体积(用定积分)怎么做啊?
数学人气:366 ℃时间:2020-01-31 21:12:56
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