设，且，则与[imgwidth="73"height="24"src="http...73413b9f76aa6e.png"]
举一反三
- 设，则[imgwidth="101"height="25"src="http:/...e5ff9f9fe381f4.png"]
- 已知[imgwidth="109"height="24"src="http://...f47ce43715a9d.gif"]=
- 设，求[imgwidth="143"height="66"src="http:/...dc4172c07e6092.png"]
- 设则（ [imgwidth="102"height="54"src="htt...9d4a97a5a3524b.png"]
- 设函数在处可导，且则[imgwidth="36"height="21"src="...b70f05bba3de85.png"]