thi HSG lớp 9 (Bến Tre - 2011)

ĐỀ THI HSG LOP 9 nam hoc 2011-2012 ( HET TUAN 9 HK I)

ĐỀ THI HSG LOP 9 nam hoc 2011-2012 ( HET TUAN 9 HK I)

... a)ĐKXĐ: ( x −2 10 A= )( ) ( ( )( ( x −1 )(7 −3 x ) = −3 x = ( x −1 )( x +4) x +4 7−3 x b) x +4 ⇔ > -3 7−3 x c) A= 7−3 x x+4 −3+ x+4 )( x −3 x − − x +1 x − x +4 ⇔ +3 >0 ) x +4 ) = −3x +10 ( x −1 )( 1,5 ... ta có : 1,5 (a − b) + (b − c) + (c − a ) ≥ ⇒ ab + bc + ca ≤ a + b + c = 2 2 2 (1 ) ( ) ( (a + b + c) = (a + b + c ) + 2( ab + bc + ca ) ≤ a...

Ngày tải lên: 25/10/2014, 08:00

4 395 0
Tài liệu Đề thi HSG lớp 9 vòng 2 (2010-2011)

Tài liệu Đề thi HSG lớp 9 vòng 2 (2010-2011)

... 2. impatient 3.length 6.death 7.weight 8.swollen/swelled V point (each correct answer gets 0,1 ) 1.c 2. a 3.b 4.c 5.a 6.a 9. a 19. d 10.d 20 .b 9. b 10.a 8.in 9. at 10.on 4.preoccupied 5.childhood 9. sharpening ... (go) to such a good party 2. At this time next week , they (sit) in the train on the way to Paris 3.When he started talking , I realized that we (meet) before By 20 12 th...

Ngày tải lên: 01/12/2013, 13:11

6 1,3K 4
Bài soạn Đề thi HSG lớp 9 vòng 1(2010-2011)

Bài soạn Đề thi HSG lớp 9 vòng 1(2010-2011)

... when his favorite team scored a goal My friend and I are both good student This is the second time I ate durians 10 This room hasn’t been used for age Answer keys I Pick out the word whose underlined ... 11.c 7.c 12.b 8.a 13.b 9. b 14.c 10.d 15.c III Give the correct form of verbs point- o.1 for each have studied / have been studying- have never been is 16.d 17.c 18.d 19. d 20 c 21.d 22.c 2...

Ngày tải lên: 01/12/2013, 13:11

4 595 0
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