• 2022-06-09
    设f(x),g(x)在区间[a,b]上连续,且g(x)<f(x)<m,则由曲线y=g(x),y=f(x)及直线X一口,X一6所围成的平面区域绕直线y=m旋转一周所得旋转体体积为( ).
    A: π∫ab[2m—f(x)+g(x)][f(x)一g(x)]dx
    B: π∫ab[2m一f(x)一g(x)][f(x)一g(x)]dx
    C: π∫ab[m一f(x)+g(x)][f(x)一g(x)]dx
    D: π∫ab[m一f(x)一g(x)][f(x)一g(x)]dx