设复数满足,,那么 /sqp/img?f=5c9aedf77a60828d5dbfb76b638f8bbb.files%2Fimage013.png/sqp/img?f=5c9aedf77a60828d5dbfb76b638f8bbb.files/image019.png/sqp/img?f=5c9aedf77a60828d5dbfb76b638f8bbb.files%2Fimage020.png/sqp/img?f=5c9aedf77a60828d5dbfb76b638f8bbb.files/image021.png

图中平面DEFG为正垂面/sqp/img?f=0c1cca171831f76bf2102f2267474046.files%2Fimage009.png

设[img=122x63]1802ce6d4319165.png[/img]是3阶矩阵. 如果3阶矩阵[img=14x19]1802ce6d4b58b52.png[/img]与[img=14x19]1802ce6d53f6c7d.png[/img]是相似的,那么[img=163x25]1802ce6d5c934bd.png[/img]等于（ ） A: 2 B: 3 C: 4 D: 5

设,则在点均可微是在 点可微的 /sqp/img?f=399564cbae5b180fa94e94b3faa5fe8f.files%2Fimage003.png/sqp/img?f=399564cbae5b180fa94e94b3faa5fe8f.files/image004.png/sqp/img?f=399564cbae5b180fa94e94b3faa5fe8f.files%2Fimage005.png/sqp/img?f=399564cbae5b180fa94e94b3faa5fe8f.files/image006.png/sqp/img?f=399564cbae5b180fa94e94b3faa5fe8f.files%2Fimage007.png

设为正向圆周,为负向圆周,则积分 的值为 /sqp/img?f=082dd162a7e1b0159a2edaf7b9917676.files%2Fimage021.png/sqp/img?f=082dd162a7e1b0159a2edaf7b9917676.files/image022.png/sqp/img?f=082dd162a7e1b0159a2edaf7b9917676.files%2Fimage023.png/sqp/img?f=082dd162a7e1b0159a2edaf7b9917676.files/image024.png/sqp/img?f=082dd162a7e1b0159a2edaf7b9917676.files%2Fimage025.png