函数在区间上是有界函数。 https://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2017/10/09/1507518052629560.pnghttps://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2017/10/09/1507518053486949.png
举一反三
- 函数是单调增函数。https://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2017/10/09/1507517720683492.png
- 某垄断企业,其产品的成本函数为TC= +200Q+400(Q为产量,TC为总成本),需求曲线方程P=300-Q(P为价格),求该企业的最优产量。https://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2017/09/26/1506395003207605.png
- 一带电大导体平板,平板二个表面的电荷面密度的代数和为σ ,置于电场强度为的均匀外电场中,且使板面垂直于的方向.设外电场分布不因带电平板的引入而改变,则板的附近左、右两侧的合场强为:https://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2018/04/22/1524362547655828.pnghttps://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2018/04/22/1524362555950661.pnghttps://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2018/04/22/1524362603533950.png
- C1和C2两空气电容器串联以后接电源充电.在电源保持联接的情况下,在C2中插入一电介质板,则https://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2018/04/22/1524384271473016.png
- 在一个原来不带电的外表面为球形的空腔导体A内,放一带有电荷为+Q的带电导体B,如图所示.则比较空腔导体A的电势UA和导体B的电势UB时,可得以下结论https://mi-public.oss-cn-hangzhou.aliyuncs.com/mssvc/editor/image/2018/04/22/1524382148906046.png