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Answers for “如何计算面积惯性矩的定积分?”

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To set up the integral for IyI_y using a vertical strip, first express the differential area dAdA in terms of xx. A vertical strip has an infinitesimal width dxdx and a height determined by the difference between the upper and lower boundary curves at position xx.

Conditions: The region is bounded by curves that can be expressed as functions of xx.; A vertical differential strip is chosen, meaning its width is dxdx.; The integration variable is xx.