求极限lim _(xarrow 0)dfrac (ln (1+5xsin x))(1-cos x).

求极限lim _(xarrow {0)^+}dfrac (1-sqrt {cos x)}(x(1-cos sqrt {x))}求极限

2.求极限lim _(xarrow 0)(dfrac (1)(xsin x)-dfrac (cos x)({x)^2}) ()2.求极限

(15)lim _(xarrow 0)dfrac (1-cos 2x)(xsin x)(15)

(3) lim _(xarrow 0)dfrac (1-cos 2x)(xsin x) ()-|||-__

(4) lim _(xarrow 0)dfrac (1-cos 2x)(xsin x) =

[题目]-|||-计算 lim _(xarrow 0)dfrac (1-cos 2x)(xsin x)

求极限lim _(xarrow 0)dfrac ({int )_(0)^x(1-cos t)dt}({x)^3}= (ost)dt/=()。求极限。

16.求极限 lim _(xarrow 0)dfrac (sqrt {1+xsin x)-sqrt (cos x)}({x)^2}

1.用洛必达法则求下列各极限:-|||-(1) lim _(xarrow 0)dfrac (ln (1+x))(x)-|||-(3) lim _(xarrow

求极限 lim _(xarrow 0)[ dfrac (1)(x)-dfrac (1)({x)^2}ln (1+x)] .