函数在点的全微分就是曲面在点 的切平面上的点的坐标的改变量。( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/f193e78b22904b5a9fce3f12a9c22842.png
举一反三
- 函数在点的全微分就是曲面在点 的切平面上的点的坐标的改变量。( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/f193e78b22904b5a9fce3f12a9c22842.png
- 函数在点(0,0)处( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/430c411bd86f4e9c8d257e2c00d9fbaa.png
- 二元函数在点(0,0)处( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201803/02db1a6ba95f4cbd80baef6ef13fff09.png
- 函数在点的全微分就是曲面在点的切平面上的点的坐标的改变量。()
- 求函数http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/c7a245151812467d85af7a1cf91a4be0.png在点http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/917120f5d9354f20ad871d7acfc759d1.png处全微分,则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/63eafd5e56d84117ba59026b91c8059e.png( )<br>