lim(x→0)[ cosx-1 /(sin² x)] 是怎么变换成 lim(x→0) [ -½
已知lim(x→0) f(x)/(1-cosx) =2 求lim(x→0) [1+f(x)]^½
lim x→0 1-cosx/xsinx
lim(x→0)(1/cosx)=?
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lim(-sin3x+cosx)^(1/x)(x→0)
求极限~lim(x→0)[(1+xsinx)^1/2-cosx]/sin^2(x/2)
求极限x→0 lim(√2-√1+cosx)/sin^2x
lim(x→0)(x^2+cosx-2)/(x^3)*ln(1+x)怎么算
lim(x→0)(cosx)^(1/ln(1+x^2))
lim(x→0)(ln(1+x^2)/(sec-cosx))
求极限lim(x→0)x²/1-cosx
lim(x→0+)[(1-cosx)/x],怎么求.