de luyen thi toeic co dap an chi tiet so 2

Ngày tải lên: 16/07/2014, 23:43

... tan4 x dx = 2cos2 x − 0 π (tan x + 1) tan4 x dx = cos2 x − cos2 x −tan2 x − + 1 − tan x + + tan x (1 − tan x)(1 + tan x) −tan2 x − + = 2 d (tan x + 1) = − π tan x + π = tan4 x d (tan x) − tan2 ... = cos 2xdx π π I1 = e2x sin 2x Lại đặt π − π e 2x e2x sin 2xdx sin 2xdx = − 0 du = 2e2x dx u = e2x ⇒ Ta có dv = sin 2xdx v = − cos 2x   π π 2x e2π − e2π − I1 = −  − e cos 2x + e2x cos 2xdx ... = cos x g) I = = π h) I = 1 + ln 3 cos x − d (cos x) = cos x cos x d (cos x) = ln − π 1 − cos6 x cos4 x π 1 dx − cos4 x cos2 x dx = 0 1 dx cos2 x cos2 x π + tan2 x d (tan x) − + tan2 x d (tan...

Ngày tải lên: 07/05/2014, 21:35

Ngày tải lên: 07/05/2014, 21:35

Ngày tải lên: 07/05/2014, 21:35

Ngày tải lên: 07/01/2015, 20:54

... th hiu dng gia hai u cun th cp l: A.I2 = 2A; U2 = 120 V B I2 = 2A; U2 = 360V C I2 = 18A; U2 = 40V D I2 = 18A; U2 = 360V Cõu 28 Khi t in mch dao ng LC bin thi n theo biu thc q = Q0 sin t Biu thc ... ? C.u q.u q Q 02 L.i Q 02 A.Nng lng in : W = B Nng lng t : Wt = = = = sin t = cos 2t 2 2C 2C 2C 2 2 L.I0 L. Q0 Q0 Q2 C.Nng lng dao ng : W= D.Nng lng dao ng: W = Wd + Wt = = = 2C 2C 4C F v cun dõy ... liu N =20 0 vũng, S = 125 cm2 , B = 0,4T, = rad s , = 100 , vo lỳc t = S 50 A f = 100Hz, E = 444 (V) C f = 50 Hz , E = 444 (V) B f = 50 Hz , E = 22 2 (V) D f = 100Hz, E = 444 (V) Cõu 21 Dũng...

Ngày tải lên: 21/08/2013, 16:10

... (18) A (19) A (20 ) B (21 ) C (22 ) B (23 ) A (24 ) C (25 ) B (26 ) C (27 ) B (28 ) B (29 ) A (30) C (31) B ( 32) A (33) B (34) C (35) A (36) B (37) B (38) A (39) C (40) B Photocopiable (41) ( 42) (43) (44) ... (109) D (110) C (111) B (1 12) A (113) A (114) C (115) D (116) C (117) B (118) A (119) D ( 120 ) B ( 121 ) ( 122 ) ( 123 ) ( 124 ) ( 125 ) ( 126 ) ( 127 ) ( 128 ) ( 129 ) (130) (131) (1 32) (133) (134) (135) (136) ... introductory work It is dense The arguments can sometimes seem abstruse and arcane And the narrative is so wide in scope that one should really have taken an introductory course in the region just...

Ngày tải lên: 29/03/2014, 22:49

... (1) B (2) A (3) C (4) D (5) B (6) B (7) A (8) A (9) A (10) D (11) A ( 12) C (13) A (14) B (15) C (16) A (17) B (18) A (19) B (20 ) C (21 ) A (22 ) B (23 ) A (24 ) B (25 ) A (26 ) C (27 ) C (28 ) A (29 ) B ... (119) B ( 120 ) D ( 121 ) C ( 122 ) C ( 123 ) D ( 124 ) B ( 125 ) A ( 126 ) B ( 127 ) C ( 128 ) C ( 129 ) A (130) B (131) A (1 32) D (133) D (134) C (135) B (136) A (137) C (138) B (139) D (140) C (141) B (1 42) C (143) ... sessions Hayride Lunch Cost: $7 for each adult and $4 for each child under the age of 10 Please make your reservations by January 18 You can send an email to Janine in Human Resources (This event...

Ngày tải lên: 29/03/2014, 22:50

... **** RATES OF FARES (Effective 02/ 02/ 2010) Per trip Person of 12 years or more - $2 Person under 12 years - $1 Person under years and accompanied by a person of 12 years or more - $0 Monthly ticket ... (18) B (19) C (20 ) C (21 ) A (22 ) B (23 ) A (24 ) B (25 ) A (26 ) C (27 ) B (28 ) C (29 ) B (30) B (31) C ( 32) A (33) A (34) A (35) C (36) B (37) C (38) A (39) B (40) C Photocopiable (41) ( 42) (43) (44) ... printing company (A) at (B) by (C) in (D) on Question (144) Letter Dear Health and Dental Plan Member, This reminder is concerning your AARP-approved Dental Plan with United Discount Dental When...

Ngày tải lên: 29/03/2014, 22:50

Ngày tải lên: 29/03/2014, 23:03

... One who can speak Japanese, Korean, and Chinese 'B) One who can speak Korean, Engiish, and German (C) One who is very good at dealing with computers (D) Freshman 23 How will the applicants know ... sheet 22 Mark your ansvver on your ansvver sheet 37 Mark your ansvver on your ansvver sheet 23 Mark your answer on your ansvver sheet 38 Mark your answer on your answer sheet 24 Mark your ansvver ... your answer on your answer sheet 20 Mark your answer on your ansvver sheet 35 Mark your ansvver on your ansvver sheet 21 Mark your answer on your answer sheet 36 Mark your answer on your answer...

Ngày tải lên: 29/03/2014, 23:05

... ,  +      $     ,    ,  /   , 0    $    ,     $  124 ;=  + >   !    *    !+  357 :                    ...

Ngày tải lên: 29/03/2014, 23:15

... type of company does the speaker W ric I for? (A) A heavy machinery manufacturer (B) An accounting company (C) A shipping company (D) An automobile dealer 99 What is suggested about the company? ... sheet 22 Mark your ansvver on your answer sheet 37 Mark your ansvver on your answer sheet 23 Mark your answer on your ansvver sheet 38 Mark your ansvver on your ansvver sheet 24 Mark your answer ... Explore Asian masterpieces, traditional arts, an extensive colledion of European art, an old Aírican art collection one of the most comprehensive Japanese art collections outside of Japan, and the...

Ngày tải lên: 29/03/2014, 23:16

Ngày tải lên: 16/07/2014, 23:36