問(wèn)答題設(shè)在xOy面內(nèi)有一分布著質(zhì)量的曲線L,在點(diǎn)(x,y)處它的線密度為μ(x,y)。用對(duì)弧長(zhǎng)的曲線積分分別表達(dá):這曲線弧對(duì)x軸、對(duì)y軸的轉(zhuǎn)動(dòng)慣量Ix,Iy.

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