• 2022-06-19
    选用适当的坐标计算下列积分:[tex=9.786x3.357]lqxpp1Okm+2z/2drYPfTVP4eHC4FJDgkgKXv8PoAJIWHcDNZ7R8LOv20gowCbSPA5yFfckPIDxExn4qQfTHf01z6EwLeqlGC8jB6ERU7fLyMqmGAvlKA+iBrhc0tl/oI[/tex][tex=0.786x1.0]b2qHHLl09vpLlE8vYMXmOw==[/tex]是由曲面 [tex=4.429x1.429]xQJ4f+x9cevCG51/pFa/eUbKfhyv91g33zvkj0euzFc=[/tex]及平面 [tex=1.786x1.0]NSwUyNvrzZXGSMvd3h6BBg==[/tex]所围成的闭区域;