BÀI KIỂM TRA GIẢI TÍCH 11- CHƯƠNG 4 (45’)
Họ và tên HS:...................................................................Lớp 11A…
Điểm

Lời nhận xét của thầy, cô giáo

Đề bài
Đề 1
Câu 1.(2đ). Tìm các giới hạn sau

3n3 − 5n + 3
a) lim
;
2n 3 − n 2

b) lim (

n + 1 cos n
+ n )
n
3

Câu 2.(3đ). Tìm các giới hạn sau

x 2 + 9 x + 20
a ) lim
;
x →( −4)
x2 + 4x

x2 − 1


Bài làm
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a) lim
;
4n3 − n 2

b) lim (

2n + 1 sin n
+ n )
n
3

Câu 2.(3đ). Tìm các giới hạn sau

x3 + 8
a) lim 2
;
x → ( − 2) x + 11x + 18

(2 x − 1) x 2 − 3
b) lim
;
x → −∞
x − 5x 2

x 2 + 3x + 2
c) lim −
x → ( − 1)
| x + 1|

¡

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