lim lnx²x→e ------ =2xlim lnx²x→ -e ------- =2x
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![lim lnx²x→e ------ =2xlim lnx²x→ -e ------- =2x](/uploads/image/z/8567649-9-9.jpg?t=lim+lnx%26%23178%3Bx%E2%86%92e+------+%3D2xlim+lnx%26%23178%3Bx%E2%86%92+-e+-------+%3D2x)
lim lnx²x→e ------ =2xlim lnx²x→ -e ------- =2x
lim lnx²
x→e ------ =
2x
lim lnx²
x→ -e ------- =
2x
lim lnx²x→e ------ =2xlim lnx²x→ -e ------- =2x
(1)lim(x-e) 2lnx/2x=lim(x-e)lnx/x=lne/e=1/e;
(2)原是=ln(-e)^2/2*(-e)=-1/e