bài tập hình học lớp 10 nâng cao chương 3

Ngày tải lên: 11/07/2014, 00:21

... : 3 đường thẳng JG,AH,BC đồng quy tại 1 điểm Bài 49/ : Cho tam giác ABC có 3 góc nhọn nội tiếp đường tròn (O) có AB<AC.Vẽ 3 đường cao AD,BE,CF của tam giác ABC cắt nhau tại H 1/Tìm 3 ... tại 1 điểm Bài 39 / : Cho tam giác ABC có 3 góc nhọn nội tiếp đường tròn (O) ,3 đường cao AD,BE,CF cắt nhau tại H 2/Chứng minh: AB là tiếp tuyến của đường tròn đường kính MN 3/ Gọi E và F lần ... minh : 3 điểm P,Q,T thẳng hàng 5/Gọi E là giao điểm của PQ và CK ,BE cắt (O ) tại J .Chứng tỏ : 3 đường thẳng HS,AJ,PQ đồng quy tại 1 điểm Bài 31 / : Cho tam giác BED có 3 góc...

Ngày tải lên: 03/04/2014, 05:20

Ngày tải lên: 04/04/2015, 22:19

Ngày tải lên: 26/10/2012, 14:26

... NGUYỄN TRÂN Trang 3 BÀI TẬP ÔN TẬP HÌNH HỌC CUỐI CHƯƠNG I LỚP 10 NÂNG CAO Câu 15 : Cho a r =(1 ; 2) và b r = (3 ; 4). Vec tơ m ur = 2 a r +3 b r có toạ độ là a) m ur =( 10 ; 12) b) m ur =( ... uuur . Bài 2 :Cho bốn điểm A, B, C, D. Gọi I, J lần lượt là trung điểm của AB và CD. GV : TRẦN THANH HOÀNG – THPT NGUYỄN TRÂN Trang 2 BÀI TẬP ÔN TẬP HÌNH HỌC CUỐI CHƯƠNG I LỚP 10 NÂNG CAO b) ... tam giác ABC vôùi A( -5 ; 6) ; B (-4 ; -1) và C(4 ; 3) . Tìm D để ABCD là hình bình haønh a) D (3 ; 10) b) D (3 ; -10) c) D( -3 ; 10) d) D( -3 ; -10) Caâu 25 : Gọi I là trung điểm của đoạn AB. Câu...

Ngày tải lên: 17/10/2013, 02:11

... BÀI TẬP TOÁN ĐẠI CHƯƠNG LỚP 10 NÂNG CAO Bài 1. giải các phương trình sau : a) 3x 2 +2/4x-1 = x +3 b) x 2 +-3x+2 /3 = 2x -1 c) 3x 2 +2/4x = 3x-5 d) 2x -10/ x2+1 = 4 . e)√x2+1-2x = 3x+1 f) ... 2x+4 g)√x-3x =5x+1 h) √5x +3 =√3x-7 i)√x 2 -3x+1= √4x 2 -1 k) √x 2 +1 =√2x -3 l)√2x 2 -5x -3 =√x 4 +2x 2 -3 m)√x 2 -4x+2 =√3x 4 -2x+1 n)√x 2 -2x +3 = √x 4 -2x 2 +1 o) | 2x +3| =|3x-1| ô)|3x+2|-2= |x-1| ơ)|x+1| =3- 2x p)|2x+8|-11=2x -3 q)|x 2 +3x-4|=|x-2| r)|x 2 -2x+1|= ... |x-1| ơ)|x+1| =3- 2x p)|2x+8|-11=2x -3 q)|x 2 +3x-4|=|x-2| r)|x 2 -2x+1|= x-2 s)|2x 2 +3x-2| =|x 2 +x-2| t)|3x 2 -2x+1| +2x -3= x 2 -2x +3 x)|x 4 +2x 2 -1|-3x+1=x 2 +2x -3 y)|2x 4 -2x 2 +x-1|= x 2 +2x -3 . Bài...

Ngày tải lên: 29/10/2013, 07:11

... dựng α 0 0 30 0 45 0 60 0 90 0 sin α 0 2 1 2 2 2 3 1 cos α 1 2 3 2 2 2 1 0 tan α 0 3 3 1 3  cot α  3 1 3 3 0 Bài tập hình học lớp 10 Trang 16 ... tơ – không Bài tập hình học lớp 10 Bài tập hình học lớp 10 Trang 8 IV. ðộ dài véc tơ 6a  bằng 2 3 ñộ dài véc tơ 4a−  Câu 2: Cho M là ñiểm nằm trên tia AB sao cho 3 AM BM = . ... Bài tập hình học lớp 10 Trang 17 Câu 1: Giá trị của 0 0 sin60 cos30+ bằng bao nhiêu? I. 3 2 II. 3 III. 3 3 IV. 1 Câu 2: Giá trị của 0 0 tan30 cot30+ bằng bao nhiêu? I. 4 3 ...

Ngày tải lên: 22/02/2014, 16:08

... liên kết). Bài 1. Tính các GTLG của các góc sau: a) 0 0 0 0 0 0 0 0 0 0 0 0 0 120 ; 135 ; 150 ; 210 ; 225 ; 240 ; 30 0 ; 31 5 ; 33 0 ; 39 0 ; 420 ; 495 ; 2550 b) 7 13 5 10 5 11 16 13 29 31 9 ; 11 ... Tính x x x xsin , cos , tan , cot . ĐS: a) 4 3 4 3 ; ; ; 5 5 3 4 − − − b) 1 2 3 ; ; 2 3; 2 3 2 2 2 3 − + − − hoặc 2 3 1 2 3; 2 3; ; 2 2 2 3 − − + − Bài 7. a) Trang 61 Lượng giác Trần Sĩ Tùng suy ... – + – 3. Giá trị lượng giác của các góc đặc biệt 0 6 π 4 π 3 π 2 π 2 3 π 3 4 π π 3 2 π 2 π 0 0 30 0 45 0 60 0 90 0 120 0 135 0 180 0 270 0 36 0 0 sin 0 1 2 2 2 3 2 1 3 2 2 2 0 –1 0 cos 1 3 2 2 2 1 2 0 1 2 − 2 2 − –1...

Ngày tải lên: 01/04/2014, 23:14

... Thay n n n n a a a a x vaøo tính S 3 3 1 3 2 (1), sin 3sin 3 sin . 3 3 3 3 − = = + + + ĐS: n n n a S a 1 3 sin sin . 4 3 = ữ Bi 10. a) Chng minh rằng: a a a sin2 cos 2sin = . b) Tính ... 4 Bài 6. Tính giá trị của các biểu thức sau: a) 7 13 19 25 sin sin sin sin sin 30 30 30 30 30 π π π π π ĐS: 1 32 b) o o o o o 16.sin10 .sin30 .sin50 .sin70 .sin90 ĐS: 1 c) o o o o cos24 cos48 ... S n 2 cot 2 π = ; S n 3 cos π = − ; a a S a 4 tan5 tan 1 5 sin − = = − ; n x S x 1 5 tan2 tan 2 − = Bài 9. a) Chứng minh rằng: x x x 3 1 sin (3sin sin3 ) (1) 4 = − b) Thay n n n n a a a a x vaøo tính S 3 3 1 3 2 (1),...

Ngày tải lên: 01/04/2014, 23:14

... ).tan(60 ) tan3− + = . b) B = –1 c) C 1 3 2 4 = − d) D 1 16 = Bài 10. Chứng minh: a) 2 3 1 cos cos cos 7 7 7 2 π π π − + = b) o o3 2 8sin 18 8sin 18 1+ = c) 8 4tan 2tan tan cot 8 16 32 32 π π π ... 1 4 3 cos290 3. sin250 + = e) o o o o o 8 3 tan30 tan40 tan50 tan60 cos20 3 + + + = f) o o o o o 3 1 cos12 cos 18 4cos15 .cos21 .cos24 2 + + − = − g) o o o o tan20 tan40 3. tan20 .tan40 3+ + ... sin 2 = . Bài 9. Đơn giản các biểu thức sau: a) o o o o o o o o o A tan3 .tan17 .tan 23 .tan37 .tan 43 .tan57 .tan 63 .tan77 .tan 83= b) B 2 4 6 8 cos cos cos cos 5 5 5 5 π π π π = + + + c) C 11 5 sin .cos 12...

Ngày tải lên: 01/04/2014, 23:14

... 10, 11, 12, 17, 19, 23, 24, 25, 26, 27, 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 42, 44, 45, 52, 53, 54, 55, 57, 59, 60. P.1-2 can be changed to the beginning in E .10 (Advanced) III 8 ... 3. Past Perfect: had + V3/ed 4. Past Perfect: had + V3/ed 5. was/were+V-ing 6. Past Perfect: had + V3/ed 7. would/should + Vo 2 18 8. can 9. may 10. must 8. could 9. might 10. ... Progressive:was/were+V- ing 3. Past Perfect: had + V3/ed 4. Past Perfect: had + V3/ed 5. was/were+V-ing 6. Past Perfect: had + V3/ed 7. would/should + Vo 8. could 9. might 10. had to Ex: He...

Ngày tải lên: 10/04/2014, 10:25

... 29 -30 3) Khoảng cách và góc t 23, 24,25 31 -32 -33 4) Đường tròn t26,27 34 -35 Kiểm tra một tiết (tuần ) t28 36 5) Đường elíp t29 ,30 ,31 37 -38 -39 6) Đường hypebol t31 ,32 40-41 7) Đường parabol t32 ,33 ... 0 0 30 0 45 0 60 0 90 0 120 0 135 0 150 0 180 0 sin 0 2 1 2 2 2 3 1 2 3 2 2 2 1 0 cos 1 2 3 2 2 2 1 0 - 2 1 - 2 2 - 2 3 -1 tan 0 3 3 1 3 kxñ - 3 -1 - 3 3 0 cot kxñ 3 1 3 3 0 - 3 3 -1 - 3 kxñ ... cos α =OM’/OM=OM’=x sin α =M’M/OM=M’M=y tan α =sin α /cos α =y/x cot α =cos α /sin α =x/y M(- 2 /2; 2 /2). Vậy sin 135 0 = 2 /2 ; cos 135 0 = - 2 /2 ; tan 135 0 = -1 ; cot 135 0 = -1 ; 28 Chương trình hình học lớp 10 A _nâng cao Môn toán nâng cao (p dụng từ năm học 2006-2007) Cả năm : 35 tuần x...

Ngày tải lên: 07/05/2014, 08:07

... Sin  0 2 1 2 2 2 3 1 Cos  1 2 3 2 2 2 1 0 tan  0 3 3 1 3  Cot   3 1 3 3 0 CHUYÊN ĐỀ BÀI TẬP HÌNH HỌC LỚP 10 ( có sử dụng tài liệu từ các nguồn khác). ...  AD =  3 BC + AC CHUYÊN ĐỀ BÀI TẬP HÌNH HỌC LỚP 10 ( có sử dụng tài liệu từ các nguồn khác). BIÊN SOẠN : TRẦN MAI SANG 10 A=( 2sin 30 0 + cos 135 0 – 3 tan 150 0 )( cos ... src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAycAAAW2CAIAAAAeIUoiAAAACXBIWXMAABYlAAAWJQFJUiTwAAAgAElEQVR42uzdf2yU 933 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Ngày tải lên: 26/06/2014, 23:20

... kính R = 3 37 . Tính độ dài các cạnh BC, AC và diện tích ΔABC. <1=18> Cho ΔABC với A = 60 o (B > C), bán kính các đường tròn ngoại tiếp, nội tiếp: R = 3 3 13 cm , r = 2 33 cm. Tính ... MB. < ;32 > Cho hình bình hành ABCD và k > 0. Tìm tập hợp các im M sao cho: ơ. MA + MB + MC + MD = k 2 . −. MA + MB + MC + 3 MD = k. ú < ;33 > Cho hình lục giỏc ... 2 điểm A (3; –1), B( 3; 5). < 53& gt; Trong mpOxy cho 2 điểm A(2;2), B(5; 3) . Lập phương trình tập hợp các điểm M sao cho MA.MB = AB 2 . <54> Cho A(2;1), B(4;2). ơ. Tỡm tập hợp các...

Ngày tải lên: 11/07/2014, 08:38

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