求极限lim(x-0) x`2-sinx / x+sinx

问题描述:

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