lim x→0 sinx/(x^2+3x)2.当x→0,下列变量中()与x为等价无穷小.A.sin^2x B.In(1+2x) C.xsin(1/x) D.根号(1+x)-根号(1-x) 3.lim x→∞ sin(1/x)=?4.lim x→∞(x-根号(x^2-1)=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 13:50:49
lim x→0 sinx/(x^2+3x)2.当x→0,下列变量中()与x为等价无穷小.A.sin^2x B.In(1+2x) C.xsin(1/x) D.根号(1+x)-根号(1-x) 3.lim x→∞ sin(1/x)=?4.lim x→∞(x-根号(x^2-1)=?
lim x→0 sinx/(x^2+3x)
2.当x→0,下列变量中()与x为等价无穷小.A.sin^2x B.In(1+2x) C.xsin(1/x) D.根号(1+x)-根号(1-x) 3.lim x→∞ sin(1/x)=?4.lim x→∞(x-根号(x^2-1)=?
lim x→0 sinx/(x^2+3x)2.当x→0,下列变量中()与x为等价无穷小.A.sin^2x B.In(1+2x) C.xsin(1/x) D.根号(1+x)-根号(1-x) 3.lim x→∞ sin(1/x)=?4.lim x→∞(x-根号(x^2-1)=?
2题选C,有界量乘以无穷小等价于无穷小 3题为0,lim[sin(1/x)]=sin[ lim(1/x) ] 4题为0,[x-根号(x^2-1)]=[x-根号(x^2)]=x-x=0
lim (x→0)x-sinx/x
lim (x->0) 3x/(sinx-x)
求下列极限,lim(x+2sinx)/(x+3sinx),x→0烦请给出具体步骤,
求极限lim(x→0)x-sinx/x^3
lim(x→0)(sinx -x)/x^3
lim(x→0)sinx/|x|rt
lim x-sinx/x+sinxx→0
lim x→0 x/sinx=
lim(x→0)arctan(sinx/x)
lim x→0((x+ sinx)/tanx)
lim x→0(sinx)^x
lim(x→0)(x-sinx)/(x+sinx)
lim(x→0) x-sinx/x+sinx的极限
lim[(x-sinx)/(x+sinx)] x→0
lim x趋向0 x^2-sinx/x+sinx
lim(x-0) x`2-sinx/x+sinx
1.lim sinX^3/(sinX)^3x→02.lim tan2X/sin5Xx→03.lim(1/1+x)^(1/2x+1)x→0
求极限 ((sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1