A. $a_{1},a_{2},a_{3}$;
B. $a_{2},a_{3},a_{1}$;
C. $a_{2},a_{1},a_{3}$;
D. $a_{3},a_{2},a_{1}$.
设alpha_(1)=x(cossqrt(x)-1),alpha_(2)=sqrt(x)ln(1+sqrt[3](x)),alpha_(3)=sqrt[3](x
5.当x→0时,无穷小量 bigcirc (1)(e)^-(x^2)-1 ;② sqrt (1+2x)-sqrt (1+x) ;bigcirc (3)(e)^x
→ ((1)/(2sqrt(3))ln|(x^2+sqrt(3)x+1)/(x^2)-sqrt(3)x+1|+(1)/(2)arctanx+(1)/(6)ar
设xarrow 0时, f(x)=sqrt(1+2x)-sqrt[3](1+3x)的等价无穷小是ax^b, 则(a,b)=【】A. $\left(\frac{1
int dfrac (dx)(1+sqrt [3]{x+1)}
求int dfrac (dx)(1+sqrt [3]{x+1)}.求.
7.已知当x→0时,ax^3与sqrt(1+x^2)-xln(1+(x)/(2))+b为等价无穷小,则ab=____7.已知当x→0时,$ax^{3}$与$\s
5.若线性方程组}x_{1)+x_(2)=-a_(1),x_(2)+x_(3)=a_(2),x_(3)+x_(4)=-a_(3),x_(4)+x_(1)=a_(
(3) int_(4)^9 sqrt(x)(1+sqrt(x))dx;(3) $\int_{4}^{9} \sqrt{x}(1+\sqrt{x})dx;$
int_(0)^2(1)/(1+sqrt[3](x))dx;$\int_{0}^{2}\frac{1}{1+\sqrt[3]{x}}dx;$