ANH TS 10.4.doc

... giá trị (P) : x -2 -1 y= x 2 2 Bảng giá trị (d) : x 2 y = – 2x + Đồ thị (P) (d) : f(x) f(x)=(1/2)x^2 f(x) =-2 *x+5/2 x(t)=1 , y(t)=t x(t)=t , y(t)=1/2 14 12 10 x -1 0 -8 -6 -4 -2 -2 c) Với a vừa ... Chứng minh a + b + c = abc ≠ 1 + + =0 2 2 a +b −c c +a −b b + c2 − a2 Ta có : a + b = -c ; b + c = - a ; c + a = - b (a + b)2 = c2 ⇒ a2 + b2 – c2 = – 2ab (b + c)...

Ngày tải lên: 21/08/2013, 14:10

Ngày tải lên: 25/01/2014, 08:20

... móng f of geometry sở hình học founded có sở four bốn (4) fourfold bội bốn, bốn lần four-group đs nhóm bốn, nhóm Klein fourscore tám mươi (từ cổ) (80) fourteen mười bốn ( 14) fourteenth thứ mười bốn; ... pyramud hình chót cụt fulcrum điểm tựa full toàn thể, toàn phần, đầy // hoàn toàn full-scale độ lớn tự nhiên full-size cỡ toàn phần full-sphere top cầu 193 fully hoàn toàn, đầy đủ funct...

Ngày tải lên: 23/07/2014, 19:20

... than in other stores The way products are displayed is another difference between supermarkets and many other types of stores; (29) example, in supermarkets, there is usually a display of ... several ways In supermarkets, goods are placed on open shelves The (28) choose what they want and take them to the checkout counter This means that fewer shop assistants are needed than in other ... talk...

Ngày tải lên: 08/11/2015, 19:33

... A B C D 25 Would you mind turn on the lights, please? It’s too dark for me to read A B( turning on ) C D IV - Read the following passage, ... And finally, there are programs for fun They include word games and puzzles for children and adults There are many wonderful new computer programs, but there are other reasons to like (28) _ ... they (29) _ It is a happy sound, like the sounds of toy an...

Ngày tải lên: 08/11/2015, 19:33

... of a forest Not (27) _plants are helpful to man Some species grow in fields and gardens as weeds that choke off useful plants Tiny hits of pollen from (28) _plants cause such (29) _as asthma ... questions 26 - 30 (0,2) Plants supply man with food clothing, and shelter- his most important needs Many of our most useful medicines are also made (26) _plants In addition, plants add beauty and plea...

Ngày tải lên: 08/11/2015, 19:33