# Luyende de21

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## Tuyen tap de thi thu dai hoc 2014 mon toan laisac de21 2014

... CmnbnNguynHTrung(htrung85@yahoo.com.vn)gitiwww .laisac. page.tl Cõu I. í 1. PNTHANGIM(KB) Nidung TX: Ă\ {2 Cú y ' = } -1 ( x -2) < 0, "xạ nờnhmsnghchbintrờn...
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## đề thi thử thpt quốc gia môn toán DE21 THPT yên lạc 2 vĩnh phúc w

... = 3x2 + 6x –  x  1 [ -2; 2] f’(x) =  3x2 + 6x – =    x  3  [ -2; 2] 0 .25 Ta có: f( -2) = 25 ; f (2) = 5; f(1) = - 0 .25 Do đó: Max f ( x)  f ( 2) 25 ; Min f ( x)  f (1)  2 0 .252; 2 ...  0 .25  k 2 , x    k 2 ,(k  )  2 a) Tìm hệ số x khai triển  x   x  12 0,5 12 Theo CT nhị thức NewTon: 12 2 k k 24  3k  x     C 12 x x  k 0 3/7 114 0 .25 hệ số x3: 24  ... phương trình:  2; 2 x2  x   x  2/ 7 113 1,0 điểm TXĐ : R 2x 1   x  x   (2 x  1)  BPT   0 .25   x  2  3x  x  0 .25  x    x  (;0)   ;   3   0 .25  x  KL:...
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## ĐỀ LUYỆNĐỀ THI THPT QG

... 25 I don't think anyone understood what I was saying at the meeting, did they? I totally failed to get my point _ A around B along C across D about Question 26 Matt: “Are you thinking of ... eventually store it in sedimentary rocks within the Earth’s crust If too much carbon dioxide is lost, too much heat escapes out into the atmosphere This can cause the Earth to cool enough for ... take place during an ice age D was unaffected by the greenhouse effect Question 42 The word “this” in the third paragraph refers to A man’s upsetting the equation B the reduction of the level...
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