要过程,谢谢大家!
1个回答
2015-12-19
展开全部
g(x)~-bx^3
limf(x)/g(x)=-lim(x-sinax)/bx^3=-lim(1-acosax)/3bx^2=-lim(1- cos x)/3bx^2=-lim( x^2 /2)/3bx^2=-1/6b=1
b=-6
lim(1-acosax)=0,a=1
limf(x)/g(x)=-lim(x-sinax)/bx^3=-lim(1-acosax)/3bx^2=-lim(1- cos x)/3bx^2=-lim( x^2 /2)/3bx^2=-1/6b=1
b=-6
lim(1-acosax)=0,a=1
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