A 高阶无穷小 B 低阶无穷小 C 同阶但非等价无穷小 D 等价无穷小

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102234_4142.png" width="75" height="22" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102238_4454.png" width="75" height="22" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102242_0235.png" width="77" height="22" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102246_0705.png" width="77" height="26" />

A 0 B 1 C <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102254_9610.png" width="12" height="26" /> D 2

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102259_3448.jpg" width="52" height="25" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102304_1358.jpg" width="52" height="25" /> C sin2x D <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102307_7022.jpg" width="89" height="25" />

A F(cos)+C B F(sinx)+C C -F(cosx)+C D -F(sinx)+C

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102311_3175.png" width="130" height="28" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102317_3985.png" width="148" height="27" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102320_9298.png" width="86" height="27" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102324_5548.png" width="196" height="27" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102330_5186.png" width="56" height="27" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102334_1798.png" width="90" height="27" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102337_7423.png" width="50" height="26" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102341_4142.png" width="56" height="27" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102350_6016.png" width="12" height="24" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102354_5414.png" width="13" height="25" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102358_3517.png" width="27" height="25" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102402_1485.png" width="28" height="22" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102410_3673.png" width="75" height="17" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102414_3516.png" width="120" height="17" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102417_9923.png" width="52" height="15" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20190919102422_8516.png" width="45" height="17" />

A 0．6 B 0．75 C 0．85 D 0．9