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

1 计算下列极限1) lim _(xarrow 0)dfrac (sqrt {1+xsin x)-sqrt (cos x)}(xtan x);1) lim _(

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

6、 lim _(xarrow 0)dfrac (sqrt {1+xsin x)-1}({e)^(x^2)-1}

7.求极限lim_(xto0)(sqrt(1+xsin x)-cos2x)/(xtan x).7.求极限$\lim_{x\to0}\frac{\sqrt{1+x

求极限lim _(xarrow 0)dfrac (x)(sqrt {1-x)-1}= ()lim _(xarrow 0)dfrac (x)(sqrt {1-x)

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

3.求下列极限:-|||-(1) lim _(xarrow 0)sqrt ({x)^2-2x+5} ;-|||-(4 lim _(xarrow 0)dfrac

4.求下列极限（5）lim _(xarrow {0)^+}sqrt [x](cos sqrt {x)}4.求下列极限（5）

求极限 lim _(xarrow 0)dfrac ({x)^2((e)^x-1)}(sqrt {1+tan x)-sqrt (1+x)}

03求极限 lim _(xarrow 0)dfrac (sqrt {a+x)-sqrt (a-x)}(x)(agt 0)