求极限lim(1-cos(1-cosX))/(sinx^2*ln(1+x^2))有图.
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求极限lim(x→0)][ln(1+2x^2)+n sinx]/(1-cosx)
lim(x→0)ln(1+2x)(1-cosx)/((e^x-1)sinx^2) 一道求极限的题
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求极限 lim x-0 1-cosx / x-sinx
微积分求极限lim(x趋向无穷)(x2+(cosx)2-1)/(x+sinx)2=