4.极限 lim _(narrow infty )dfrac (2n+3sin n)(n)=-|||-A.∞ B.2 C.3 D.5-|||-A A-|||-B B-|||-C C-|||-D D4.极限 lim _(narrow infty )dfrac (2n+3sin n)(n)=-|||-A.∞ B.2 C.3 D.5-|||-A A-|||-B B-|||-C C-|||-D D

数列极限lim _(narrow infty )(6(n)^2+2)sin dfrac (1)(3{n)^2+1}=( )A.B.C.2D.3数列极限

lim _(narrow infty )((2n+1))^2sin dfrac (1)(2{n)^2} 值是(··)。 ()A、3B、1C、2D、∞A、3B、1

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

已知 lim _(narrow infty )(a)_(n)=2 lim _(narrow infty )(b)_(n)=3已知 lim _(narrow in

lim _(narrow infty )dfrac ({({n)^2-n+1)}^100}({n)^200+(n)^100+1}=-|||-A O;-|||-B

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

(3)收敛, lim _(narrow infty )(2+dfrac (1)({n)^2})=2 --|||-(4)收敛, lim _(narrow inft

1.求下列极限:-|||-(1) lim _(narrow infty )dfrac ({n)^3+3(n)^2+1}(4{n)^3+2n+3} =-|||-(

__-|||-lim _(narrow infty )([ sin (dfrac {pi )(4)+dfrac (1)(n))] }^n=( )A.

63、求极限lim _(narrow infty )dfrac ({5)^n-(3)^n}({5)^n+(2)^n}63、求极限