求极限lim(x-0) x`2-sinx / x+sinx

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求极限lim(x-0) x`2-sinx / x+sinx

求极限lim(x-0) x`2-sinx / x+sinx
求极限lim(x-0) x`2-sinx / x+sinx

求极限lim(x-0) x`2-sinx / x+sinx
lim(x-0) (x²-sinx )/(x+sinx)
=lim(x-0)[x(x-1)/x(1+1)
=lim(x-0)[(x-1)/2
=-1/2