设是由圆周所围成的闭区域位于直线上方的部分，函数在上连续，则 ．https://img-ph-mirror.nosdn.127.net/7fwte4zRVRFsQA6AJGLNzQ==/6599274287471067843.pnghttps://img-ph-mirror.nosdn.127.net/SCWFbeCHt7KazxtYt1iHrw==/6608537672933918176.pnghttps://img-ph-mirror.nosdn.127.net/Bl8J31m4wDZC158XOpbd8A==/3773172062906460416.pnghttps://img-ph-mirror.nosdn.127.net/AzSolBHpAcwrMwJeuCZ3qw==/6608821346933715540.pnghttps://img-ph-mirror.nosdn.127.net/7fwte4zRVRFsQA6AJGLNzQ==/6599274287471067843.pnghttps://img-ph-mirror.nosdn.127.net/Ifzli-MewWUJphrm6hvdDA==/6608201222376771979.png
举一反三
- 设函数在有界闭区域上连续，则是的https://img-ph-mirror.nosdn.127.net/AzSolBHpAcwrMwJeuCZ3qw==/6608821346933715540.pnghttps://img-ph-mirror.nosdn.127.net/7fwte4zRVRFsQA6AJGLNzQ==/6599274287471067843.pnghttps://img-ph-mirror.nosdn.127.net/JP8UrBsuml645rOhx1gFcw==/6608897213236161833.pnghttps://img-ph-mirror.nosdn.127.net/O_G3pHt3KyUzaRcmaobAmg==/6608234207725603267.png
- 设是由圆周所围成的闭区域，则．https://img-ph-mirror.nosdn.127.net/7fwte4zRVRFsQA6AJGLNzQ==/6599274287471067843.pnghttps://img-ph-mirror.nosdn.127.net/W-tqtF-xw0asXSap_FgPUw==/6608715793817617356.pnghttps://img-ph-mirror.nosdn.127.net/5ODMKh0LECSPRXTDbA6ZPQ==/6608626733375768416.png
- 设函数在点处存在关于和的一阶偏导数，则极限的值为.https://img-ph-mirror.nosdn.127.net/AzSolBHpAcwrMwJeuCZ3qw==/6608821346933715540.pnghttps://img-ph-mirror.nosdn.127.net/riflWFLWLx67TbwPlzd9tA==/6608437617375621610.pnghttps://img-ph-mirror.nosdn.127.net/dyIPWyFt4Slg58f2hJhSgA==/6599324865005947430.pnghttps://img-ph-mirror.nosdn.127.net/UdiS2LasHHPU1rvP0W8m0g==/6599309471843212852.pnghttps://img-ph-mirror.nosdn.127.net/9E39I3VJ73DxsgLGL8JhGg==/6608841138143042768.png
- 设集合, A上的关系 , , 则 = ________________________, =____________________________, =________________________.https://img-ph-mirror.nosdn.127.net/Ir_BnXKpLuVzUv8qV7DePQ==/2596043710222405203.pnghttps://img-ph-mirror.nosdn.127.net/W0kxC_oqhCGcgMXSIxmrNA==/6608671813352373524.pnghttps://img-ph-mirror.nosdn.127.net/HMPOvS1yBV1g-eoGPCLtlw==/6631646108818998910.pnghttps://img-ph-mirror.nosdn.127.net/4eO2QDOmozl6k9VETPbb4w==/6608268292585874055.pnghttps://img-ph-mirror.nosdn.127.net/6cXPP6rjlU7ck0eZJzL6Bg==/1237645472697074344.pnghttps://img-ph-mirror.nosdn.127.net/HsOfJ7hBkTkJ0DABRo-H4g==/6597830628705090333.pnghttps://img-ph-mirror.nosdn.127.net/0Vf76qI2ztdq1ovUkaFePw==/6608268292587415060.pnghttps://img-ph-mirror.nosdn.127.net/LuQvCoi51wQzU--Fomwenw==/6597909793542286834.png
- 设,有划分，则，分别为https://img-ph-mirror.nosdn.127.net/_kVuHX7nBFHlNfzR3AeTRQ==/6631704382934470362.pnghttps://img-ph-mirror.nosdn.127.net/4QRI30JkP7V6jj57tHynuQ==/6608641027026760798.pnghttps://img-ph-mirror.nosdn.127.net/orOIv8YcdU_h_lUOdGNFCg==/6608226511145727302.pnghttps://img-ph-mirror.nosdn.127.net/giAuaiFtJSeucb0heLidqQ==/6597538158612635068.pnghttps://img-ph-mirror.nosdn.127.net/x1gGO27o3MWmLN9driNajQ==/1045116588544232433.pnghttps://img-ph-mirror.nosdn.127.net/A4wrtpUR5BGSeNCmbq_OcA==/1383168035656711023.png