①设y=e^(1/x)当x___时函数为无穷小量,当x___时函数为无穷大量.②已知x→0时,ln(1+ax)与sin2x等价,则a=___③当x→0时,x^2与sinx比较是A.较高级的无穷小量B.较低级的无穷小量C.等价无穷小量D.同阶无穷小量④解x→1时lim(x^(1/(1-x)))⑤解x→0时lim(1/x-1/(e^x-1))
求极限的题…
①设y=e^(1/x)当x___时函数为无穷小量,当x___时函数为无穷大量.②已知x→0时,ln(1+ax)与sin2x等价,则a=___③当x→0时,x^2与sinx比较是A.较高级的无穷小量B.较低级的无穷小量C.等价无穷小量D.同阶无穷小量④解x→1时lim(x^(1/(1-x)))⑤解x→0时lim(1/x-1/(e^x-1))