lim(x->-inf)(sqrt(4x^2+3x)+2x)=lim(x->-inf)(2abs(x)+2x*1/2*3/(4x^2)+o(1/x)+2x)
=-3/4+o(1/x)
=-3/4...
lim(x->-inf)(sqrt(4x^2+3x)+2x)=lim(x->-inf)(2abs(x)+2x*1/2*3/(4x^2)+o(1/x)+2x)
=-3/4+o(1/x)
=-3/4...
• 这个怎么变来的?再解释一下? -chinomango- ♂ (0 bytes) () 12/12/2021 postreply 15:09:19