1.已知y=xlnx,则y³=( )A.-1/X B.1/X² C.-1/X² D.1/X2.下列极限中能使用罗比达法则的有( )A.lim(x²sin1/X)/sinX B.lim X*(π/2-arctanX) X→0 X→+∞C.lim(X-sinX)/(X+sinX) D.lim (e∧x=e∧-x)/
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![1.已知y=xlnx,则y³=( )A.-1/X B.1/X² C.-1/X² D.1/X2.下列极限中能使用罗比达法则的有( )A.lim(x²sin1/X)/sinX B.lim X*(π/2-arctanX) X→0 X→+∞C.lim(X-sinX)/(X+sinX) D.lim (e∧x=e∧-x)/](/uploads/image/z/679678-70-8.jpg?t=1.%E5%B7%B2%E7%9F%A5y%3Dxlnx%2C%E5%88%99y%26sup3%3B%3D%EF%BC%88+%EF%BC%89A.-1%2FX+B.1%2FX%26sup2%3B+C.-1%2FX%26sup2%3B+D.1%2FX2.%E4%B8%8B%E5%88%97%E6%9E%81%E9%99%90%E4%B8%AD%E8%83%BD%E4%BD%BF%E7%94%A8%E7%BD%97%E6%AF%94%E8%BE%BE%E6%B3%95%E5%88%99%E7%9A%84%E6%9C%89%EF%BC%88+%EF%BC%89A.lim%EF%BC%88x%26sup2%3Bsin1%2FX%EF%BC%89%2FsinX+B.lim+X%2A%EF%BC%88%CF%80%2F2-arctanX%29+X%E2%86%920+X%E2%86%92%2B%E2%88%9EC.lim%EF%BC%88X-sinX%EF%BC%89%2F%EF%BC%88X%2BsinX%EF%BC%89+D.lim+%EF%BC%88e%E2%88%A7x%3De%E2%88%A7-x%EF%BC%89%2F)
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1.已知y=xlnx,则y³=( )A.-1/X B.1/X² C.-1/X² D.1/X2.下列极限中能使用罗比达法则的有( )A.lim(x²sin1/X)/sinX B.lim X*(π/2-arctanX) X→0 X→+∞C.lim(X-sinX)/(X+sinX) D.lim (e∧x=e∧-x)/
1.已知y=xlnx,则y³=( )
A.-1/X B.1/X² C.-1/X² D.1/X
2.下列极限中能使用罗比达法则的有( )
A.lim(x²sin1/X)/sinX B.lim X*(π/2-arctanX)
X→0 X→+∞
C.lim(X-sinX)/(X+sinX) D.lim (e∧x=e∧-x)/(e∧x-e∧-x)
X→∞ X→+∞
3.设f(x)=1/3*x³-x,则x=1是f(x)在[-2,2]上的( )
A.极小值点,但不是最小值点 B.极小值点,也是最小值点
C.极大值点,但不是最大值点 D.极大值点,也是最大值点
1.已知y=xlnx,则y³=( )A.-1/X B.1/X² C.-1/X² D.1/X2.下列极限中能使用罗比达法则的有( )A.lim(x²sin1/X)/sinX B.lim X*(π/2-arctanX) X→0 X→+∞C.lim(X-sinX)/(X+sinX) D.lim (e∧x=e∧-x)/
CBC 别忘给分哦
1.C
2.B
3.C