BÀI TẬP TẾT 2017
Bài 1. Tìm m để hàm số y
x3
(m 1) x2 (m 1) x 1 đồng biến trên khoảng (1; +).
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Bài 2. Cho hàm số y x3 3x2 (C). Viết phương trình tiếp tuyến của đồ thị (C) tại
điểm có hoành độ bằng 1.
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Bài 3. Cho hàm số:
y
2x 1
C
x1
Phương trình tiếp tuyến của (C ) tại điểm có hoành độ
bằng 2.
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Bài 4. Cho hàm số: y 2 x3 6 x2 5 C . Viết phương trình tiếp tuyến của đồ thị (C ),
biết tiếp tuyến đi qua điểm A( 1; 13).
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Bài 5. Tìm m để hàm số y (m 2) x3 3x2 mx 5 có cực đại, cực tiểu.
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Bài 6. Tìm m để hàm số y x3 3mx2 (m2 1) x 2 đạt cực đại tại x = 2.
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Bài 7. Viết ptđt đi qua 2 điểm cực trị hàm số: y x3 2x2 x 1.
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Bài 8. Tìm m để hàm số y 2x3 3(m 1) x2 6(m 2) x 1 có đường thẳng đi qua 2 cực
trị song song với đt: y = –4x + 1.
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Bài 9. Tìm max, min của hàm số
3
4
1. y 4x 3x
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2. y 2 x 4 x
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3.
y
2sin x 1
sin x 2
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Bài 10. Tìm max, min của hàm số: y 2x3 3x2 12x 1 trên [–1; 5]
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Bài 11. Tìm m để phương trình có 4 nghiệm phân biệt x 3 x 2 m 1
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Bài 12. Gọi M (C ) : y
tọa độ
Ox , Oy
2x 1
x 1
có tung độ bằng 5 . Tiếp tuyến của (C ) tại M cắt các trục
lần lượt tại A và B. Hãy tính diện tích tam giác
OAB ?
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Bài 13. Cho log2 6 a . Tính log318 theo a.
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Bài 14. Cho log2 5 a; log3 5 b . Tính log6 5 a và b.
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Bài 15. Giải phương trình: 9x 6x 2.4x .
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Bài 16. Giải phương trình: log 2 x2 log 1 ( x 2) log 2 (2x 3).
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Bài 17. Giải phương trình: log 3 (5x 3) log 1 ( x2 1) 0.
3
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Bài 18. Giải phương trình:
1
3
1
.
log 2 x 2 2 3 log 2 x 5
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Bài 19. Giải phương trình
24
x
5
5
24
x
10
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Bài 20. Giải bất phương trình log 1 ( x2 3x 2) 1.
2
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x
2( x 1)
Bài 21. Giải bất phương trình 4 2
2
( x 2)
83
52
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Bài 22. Giải bất phương trình
1
2
1
4 log 2 x 2 log 2 x
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Bài 23.
dx
(3 2x)5
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Bài 24.
5 2xdx
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Bài 25. ( x3 5)4 x2dx
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Bài 26.
x
x2 5
dx
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Bài 27.
3x2
5 2x
3
dx
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Bài 28. sin4 x cos xdx
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Bài 29.
sin x
dx
cos5 x
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Bài 30. x.ex
2
1
dx
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Bài 31.
ln3 x
x dx
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Bài 32.
dx
ex 1
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Bài 33.
dx
2
x 7x 10
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Bài 34.
x
( x 1)(2x 1)dx
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Bài 35.
dx
4 x2
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Bài 36.
x2dx
1 x2
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Bài 37. x.ex dx
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Bài 38. ln xdx
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Bài 39. x cos xdx
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Bài 40. x sin2 xdx
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Bài 41. ln( x2 1)dx
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Bài 42.
( x 3)e dx
x
0
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Bài 43.
x2 1
1 x2 ln x dx
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Bài 44. x 2 x 2 dx
0
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Bài 45.
0
4x 1
dx
2x 1 2
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2
x
x 1
1 1
Bài 46. I
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Bài 47. Tính diện tích hình phẳng được giới hạn bởi đồ thị của hàm số y x3 trục
hoành và hai đường thẳng x = - 1, x = 2
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Bài 48. Tính diện tích hình phẳng giới hạn bởi hai đường thẳng x 0, x và đồ thị
của hai hàm số y sinx, y= cos x
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Bài 49. Tính diện tích hình phẳng giới hạn bởi hai đường cong y x 3 x
và
y x x2
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Bài 50. Cho hình chóp đều S.ABCD có cạnh đáy bằng a và cạnh bên tạo với đáy một
góc 60o. Thể tích của khối chóp đều
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Bài 51. Cho hình chóp S.ABCD biết ABCD là một hình thang vuông ở A và D; AB =
2a; AD = DC = a. Tam giác SAD vuông ở S. Gọi I là trung điểm AD. Biết (SIC) và
(SIB) cùng vuông góc với mp(ABCD). Thể tích khối chóp S.ABCD theo a bằng
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Bài 52. Cho hình chóp đều S.ABCD, biết hình chóp này có chiều cao bằng a 2 và độ
dài cạnh bên bằng a 6 . Tính thể tích khối chóp S.ABCD bằng:
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Bài 53. Cho lăng trụ đứng ABC.A/B/C/ có đáy ABC là tam giác vuông tại B, AB = a,
BC = a 2 , mặt bên (A/BC) hợp với mặt đáy (ABC) một góc 300. Thể tích khối lăng
trụ là
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Bài 54. Cho hình chóp S.ABC có đáy ABC là hình tam giác đều cạnh a, cạnh bên
SA vuông góc với mặt phẳng đáy và SA=
a 6
. Khi đó khoảng cách từ A đến mp
2
(SBC) bằng
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