Lượng giác ôn thi tốt nghiệp 2015 có đáp án

... x + cos x = π 2 − sin3 2x = Đáp số: x = + k2π 2 7) (cos 4x − cos 2x) = sin 3x sin x π VP Đáp số: x = + k2π cos x sin6 x sin2 x nên cos5 x = cos2 x sin6 x = sin2 x Đáp số: π x = + kπ, x = k2π ... Điệp 4) x = π + kπ, x = kπ 5) x = kπ, x = arctan π 1− + kπ, x = − + kπ π 6) t = tan x + cot x Đáp số: x = , x = π + kπ Bài π 1) x = − + k2π, x = k2π π + k2π π 3) x = − + kπ 4) x = k2π 2) x =

Ngày tải lên: 22/04/2015, 10:22

Ngày tải lên: 08/08/2014, 17:48

... log y = 100 0 log x = log y = π = π 1,0 1,0 1,0 log x + log y = log x.log y = x = 10 x = 100 ho c y = 100 y = 10 1,0 Bùi Gia Phong − Giáo viên tr ng THPT Tr ng V nh Ký B n tre VI − TOÁN ÔN THI T ... tr ng THPT Tr ng V nh Ký B n tre III − TOÁN ÔN THI T T NGHI P THPT I/ PH N CHUNG CHO T T C CÁC THÍ SINH (7,0 i m) Câu I (3,0 i m) Cho hàm s y = − x4 + 6x2 − có th (C) a) Kh...

Ngày tải lên: 30/12/2014, 22:46

... −1 ± i 15 Trang 760 17 Ôn thi tốt nghiệp THPT 2011 dccthd@gmail.com s I PH N CHUNG CHO T T C THÍ SINH (7 i m) Câu (3,0 i m) Cho hàm s y = x − mx − x + m + (Cm ) 1) Kh o sát s bi n thi n v th ... i)15 = 128  cos − i sin   4 Trang 19 Ôn thi tốt nghiệp THPT 2011 dccthd@gmail.com s 20 I PH N CHUNG CHO T T C THÍ SINH (7 i m) Câu (3 i m) Cho hàm s y = x + 3x − 1) Kh o sát s bi n thi...

Ngày tải lên: 30/05/2015, 01:00

... trình lượng giác Sử dụng phương pháp sau • Biến đổi phương trình dạng phương trình lượng giác • Biến đổi phương trình dạng phương trình tích số • Biến đổi phương trình dạng đặt ẩn số phụ chuyển phương ... Giải phương trình : sin x + 4(cos x − sin x ) = 4 Các phương pháp giải phương trình lượng giác thường sử dụng : a Phương pháp 1: Biến đổi pt...

Ngày tải lên: 21/01/2014, 18:20

... z − ) Vb – 2i -3 – 2i = 25 PT có nghi m 38 + 2

Ngày tải lên: 09/07/2014, 10:21

... Só Tùng www.MATHVN.com Câu 4a: 2) x-2 y -3 z = = Câu 4b: 2) d = 3) (D) : Câu 5a: z = x -1 y -1 z - = = -2 -2 ỉ 3ư ỉ 3ư ÷ , ç - ;÷ è 2 ø è 2 ø Câu 5b: (0;0),(1;0), ç - ; www.MATHVN.com - Đề số ... (0) [ -2 ;2] [ -2 ;2] a3 ì x = + 3t ï x -1 y - z +1 Câu 4a: 1) í y = - 5t ; = = -5 ï z = -1 + t ỵ Câu 5a: z = -1 + 2i Câu 4b: 2) y + z -...

Ngày tải lên: 30/10/2014, 07:00

... The thief wore gloves so as to avoid leaving any fingerprints A The thief wore gloves so as to not leave any fingerprints B The thief wore gloves so that not leave any fingerprints C The thief ... little D so many Cu 39: A eating B to eat C for eat D to be eaten Cu 40: A anything B nothing C everything D something Read the following passage carefully and choose the correct answer Every ... no...

Ngày tải lên: 26/07/2014, 11:20

... homework by midnight Cu 11: A lot of things to the house before we can move in A need to B need to be done C need being done D need be doing Cu 12: This is a _ measure to cope with the ... Hard work can often make for lack of intelligence A up B as C in D into Cu 26: The students in this class, are from the provinces, are having trouble finding decent accommodation A all whom ... traffic A w...

Ngày tải lên: 26/07/2014, 11:20

... D interestingly 21 The weather this month _ him because it has been raining most of the time A disappoints B disappointing C disappointed D disappointment 22 This job is and a lot of young ... attraction B attracted C attract D attractive 23 This shirt is good and its price is _ A reason B reasonable C reasonably D reasoning 24 Have you got anything _? A eat B ate C eating D to eat 25 ... yea...

Ngày tải lên: 26/07/2014, 11:20

... D interestingly 21 The weather this month him because it has been raining most of the time A disappoints B disappointing C disappointed D disappointment 22 This job is and a lot of young ... attraction B attracted C attract D attractive 23 This shirt is good and its price is A reason B reasonable C reasonably D reasoning 24 Have you got anything _? A eat B ate C eating D to ear 25 ... years,...

Ngày tải lên: 26/07/2014, 11:20

... There was a terrible _ on Highway 10 this morning Five vehicles were involved A scratch B incident C crash D damage Cu 21: students in this class have trouble finding time to work ... climbers She found that life on Everest is hard "You must carry everything on your back", she explained, "so you can only take things that you will need You can't wash on the mountain, and in the ... weight is...

Ngày tải lên: 26/07/2014, 11:20

... to get up 16 This plat is too small for my family A This flat is not big enough for my family B This flat is not rather big for my family C This flat is not enough big for my family D This flat

Ngày tải lên: 26/07/2014, 11:20

... went out for the evening A had been finished B was being finishing C was finished D had finished 17 When he arrived, a crowd _ for several hours to greet him A had been waiting B was waited ... me on many occasions at school A award B awarding C to award D awarded 21 There are so many things to that we never get A interesting/ boring B interested/ bored C interested/ boring D ... _ as many...

Ngày tải lên: 26/07/2014, 11:20

... person will think that you are not interested in what he or she is saying This of course, is not polite If you look down or to the side when you are talking, you may appear hiding something, that ... known all your life or someone you have grown (36) with There are all sorts of things that can (37) about this special relationship It may be the result of enjoying the same activities and ... Pl...

Ngày tải lên: 26/07/2014, 11:20