【题目】-|||-(11) lim sqrt [n]({2)^n+(3)^n+(4)^n}= __-|||-(12)设 lim _(xarrow -1)dfrac ({x)^3+a(x)^2+x+2}(x+1)=b(k 为有限数),则 a+b= __ _-|||-(13) lim _(xarrow infty )(xsin dfrac (1)(x)+dfrac (1)(x)sin x)= __-|||-(14) lim _(xarrow 0)(xsin dfrac (1)(x)+dfrac (1)(x)sin x)= __ -.-|||-(15)设 lim _(xarrow infty )((dfrac {x+2a)(x-1))}^x=(e)^3 ,则 a= __-|||-(16) lim sqrt [x](1-2x)= __ _.-|||-(17)已知 (x)=2x+4sin x sin x f(x) 则 f(x)= __ --|||-(18)已知 f(x)= { , xlt 0 b, x=0 a+cos x, xgt 0 的连续区间为 __

【题目】-|||-(11) lim _(narrow infty )sqrt [n]({2)^n+(3)^n+(4)^n}= __-|||-(12)设 lim

求极限lim _(narrow infty )dfrac ({2)^n+(3)^n+(7)^n}({5)^n+(8)^n}lim _(narrow infty

设 (x)=lim _(narrow infty )dfrac ({x)^n+2-(x)^-n}({x)^n+(x)^-n} 则函数(x)=lim _(narr

[题目]-|||-(5) lim _(narrow infty )dfrac ({(-2))^n+(3)^n}({(-2))^n+1+(3)^n+1} ;

[题目]-|||-(5) lim _(narrow infty )dfrac ({(-2))^n+(3)^n}({(-2))^n+1+(3)^n+1} ;

lim _(arrow infty )dfrac ({3)^n+(2)^n}({2)^n-(3)^n}=_________。_________。

lim _(narrow infty )dfrac ({2)^n+(3)^n}({2)^n+1+(3)^n+1}=________;________;

证明:lim _(narrow infty )(({2)^n+(4)^n+(6)^n)}^dfrac (1{n)}=6.证明:.

(5) lim _(narrow infty )dfrac ({(-2))^n+(3)^n}({(-2))^n+1+(3)^n+1} ,

设(x)=lim _(narrow infty )dfrac ({x)^n+2}(sqrt {{2)^2n+(x)^2n}}，则(x)=lim _(narrow