计算第二型曲线积分[tex=6.071x2.643]2bVGYLWaSFq0YhAHplc6ZXh0m3TPI+KyOebBquvhgJxc5lARUXl+3u/vcq8fBkO+qMjs9uQXFrlRtYzntwCg2g==[/tex]式中O为坐标原点,A点的坐标为(1,2)设:OA为直线段
解:[tex=15.143x2.786]9+GRwgVfUKEFU/eUVNgLPeMRR4puig0mzhJd2VjIZOu5JtiDrGzmfxgwhGrmo2DugAe/aYm6fUYxkHYCGCBKGIXP7jhpXqJrrIMEHFhzGiA=[/tex]
举一反三
- 计算第二型曲线积分[tex=6.071x2.643]2bVGYLWaSFq0YhAHplc6ZXh0m3TPI+KyOebBquvhgJxc5lARUXl+3u/vcq8fBkO+qMjs9uQXFrlRtYzntwCg2g==[/tex]式中O为坐标原点,A点的坐标为(1,2)设:OA 为由Ox轴上的线段OB和平行于Oy轴的线段BA 组成的折线.
- 计算第二型曲线积分[tex=6.214x2.643]RgwkhoWY6uIHsaML0oztMeTczMOCsjJqbv/YOKtMJrj+tQVNRUGlvruHIBsiX8CA[/tex]式中O为坐标原点,A点的坐标为(1,2)设:OA为直线段
- 计算第二型曲线积分[tex=6.214x2.643]RgwkhoWY6uIHsaML0oztMeTczMOCsjJqbv/YOKtMJrj+tQVNRUGlvruHIBsiX8CA[/tex]式中O为坐标原点,A点的坐标为(1,2)设:OA 为由Ox轴上的线段OB和平行于Oy轴的线段BA 组成的折线.
- 已知:M是线段AB的中点,A(2,-4),B(0,-2),则M点坐标为( ) A: (1,-1) B: (1,-2) C: (2,-6) D: (1,-3)
- 点(1, 2, 3)关于坐标原点O对称的点的坐标为( ) A: (-1, -2, -3) B: (-1, -2, 3) C: (1, 2, -3) D: (1, 2, 3)
内容
- 0
平移坐标轴,将坐标原点移至O’(-1,1),则点(1,-3)在新坐标系中的坐标为( ) A: (0,-2) B: (-2,4) C: (2,-4) D: (-1,-3)
- 1
以下哪个点与坐标原点O的距离最近?( ) A: (0, 1, 2) B: (1 ,2, -2) C: (3, 2, 1) D: (2, 0, 3)
- 2
已知点P(-2,4),和Q(6,-6),则线段PQ的中点M的坐标为 A: (2,-1) B: (-1,2) C: (4,-5) D: (3,-3)
- 3
点(1,2,3)关于原点的对称点坐标为( ). A: (1,-2,-3) B: (-1,-2,-3) C: (-1,2,-3) D: (1,2,3)
- 4
set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}