求lim(x→0)[(x-sinx)÷(x+sinx)]的极限给点解题步骤谢了.

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求lim(x→0)[(x-sinx)÷(x+sinx)]的极限给点解题步骤谢了.求lim(x→0)[(x-sinx)÷(x+sinx)]的极限给点解题步骤谢了.求lim(x→0)[(x-sinx)÷(

求lim(x→0)[(x-sinx)÷(x+sinx)]的极限给点解题步骤谢了.
求lim(x→0)[(x-sinx)÷(x+sinx)]的极限
给点解题步骤谢了.

求lim(x→0)[(x-sinx)÷(x+sinx)]的极限给点解题步骤谢了.
0……对分子分母分别求导有(1-cosX)/(1+cosX)把X等于零代入可得值为0