计算对弧长的曲线积分:[tex=2.786x2.214]cEuAQtjIVJrkhIaRN+pCTNPDZLHoiy92iZy+QLlB26Q=[/tex],其中[tex=0.714x1.286]LA74ioWWkXdGbHCtFk/Sog==[/tex]为抛物线[tex=3.286x1.286]ccfhwyleg5gwpZOS5264bQ==[/tex]上连接点[tex=2.143x1.286]q8d9ecMZwZI3gbdeOe+7AA==[/tex]与点[tex=2.143x1.286]kyjvwa76FcZEotT5IkEFYA==[/tex]的直线段 .
举一反三
- 计算对弧长的曲线积分:[tex=2.857x2.214]tMx4ZMvUVgwVH9qRW18vcX7//ca86JA65IBSiknHUMM=[/tex],其中[tex=0.714x1.286]LA74ioWWkXdGbHCtFk/Sog==[/tex]为抛物线[tex=4.929x1.286]idONM03IRP84tDTG0yvsCed8U0NHntwsawI05EW08NM=[/tex]上连接点[tex=2.143x1.286]q8d9ecMZwZI3gbdeOe+7AA==[/tex]与点[tex=2.143x1.286]kyjvwa76FcZEotT5IkEFYA==[/tex]的一段弧 .
- 计算对弧长的曲线积分:[tex=3.571x2.214]9UG03GDhcYZHYVY4GZftYKGIbRvccYJfUYZ1HBvMGzc=[/tex],其中[tex=0.714x1.286]LA74ioWWkXdGbHCtFk/Sog==[/tex]为抛物线[tex=2.786x1.286]Xv1ex0v791LL5e/JRFQi6g==[/tex]介于点[tex=2.143x1.286]q8d9ecMZwZI3gbdeOe+7AA==[/tex]与点[tex=2.143x1.286]OGI1nc8WH38NKUnYUafisA==[/tex]之间的那一段弧 .
- 计算对弧长的曲线积分:[tex=5.143x2.214]ocB9yF34t0FqVdyA/alSA6PGgv0SMa9D4Ov69mcvZv8=[/tex],其中[tex=0.714x1.286]LA74ioWWkXdGbHCtFk/Sog==[/tex]为连接点[tex=2.143x1.286]xFRFgvSxDEv0XaioRgmbFw==[/tex]与点[tex=2.143x1.286]VykF7BpO3NFT550xU7Tx1w==[/tex]的直线段 .
- 计算下列对弧长的曲线积分.[tex=3.643x2.214]Cmu/6l1wSZfSLvmLYKmekVUGtt2AOFYVShKzNp2Ep1KjxyX83fkHnNKUlXaO3xyU[/tex],其中[tex=0.714x1.286]LA74ioWWkXdGbHCtFk/Sog==[/tex]为抛物线[tex=2.786x1.286]Xv1ex0v791LL5e/JRFQi6g==[/tex]介于点[tex=2.143x1.286]q8d9ecMZwZI3gbdeOe+7AA==[/tex]与点[tex=2.143x1.286]OGI1nc8WH38NKUnYUafisA==[/tex]之间的那一段弧.
- 把对坐标的曲线积分[tex=5.071x2.214]S3T7aw2EkJGuQitaozRUnl4O7OCS098oQkUFuI40Lv4=[/tex][tex=3.0x1.286]/fFxW1CvOqgEw62SnVdMhw==[/tex]化为对弧长的曲线积分,其中[tex=0.714x1.286]LA74ioWWkXdGbHCtFk/Sog==[/tex]为抛物线[tex=2.786x1.286]Xv1ex0v791LL5e/JRFQi6g==[/tex]上从点[tex=2.143x1.286]q8d9ecMZwZI3gbdeOe+7AA==[/tex]到点[tex=2.143x1.286]v2wxUhEHgcEtjazZG/KOoQ==[/tex]的曲线弧 .