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haichauqb13
2 năm trước
Cho f(x)=(m+2)x2-2mx+3m a) Tìm m để bất phương trình f(x) ≤ 0 vô nghiệm b) Tìm m để bất phương trình f(x) > 0 có nghiệm
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REVIEW I/ Unscramble 1/ ouseh……………………………………………......................................................... 2/ ondp………………………………………………………………………………….. 3/ deboomr………………………………………………………………………………. 4/ kithenc……………………………………………………………………………… 5/ graend………………………………………………………………………………… 6/ yadr……………………………………………………………………………………. 7/ athbrmoo………………………………………………………………………………. 8/ gaet……………………………………………………………………………………. 9/ dinign oomr……………………………………………………………………………. 10/ rtee……………………………………………………………………………… 11/ fraeht 12/ graondmethr 13/ roebrht 14/ sierts 15/ dranfergath 16/ hteorm 17/ amn 18/ etchera 19/ owamn 20/ iendrf II/ Write number into letter 1/ 20 + 30 = fifty 2/ 15 + 14 = 3/ 8 + 4 = 4/ 19 + 22 = 5/ 9 + 31 = 6/ 42 + 54 = 7/ 58 + 19 = 8/ 63 + 6 = 9/ 75 + 24 = 10/ 86 + 13 = III/ Circle the right answer 1. Who is this? – “………….. .” A. It’s a pen B. It’s my father C. He’s boy D. This is a family 2. He is my .................................................. A. father B. mother C. grandmother D. woman 3. ....................is my mother. A. He B. SheC. ItD. I 4. Is this your mother? A. Yes, it is B. Yes, she is C. No, it is D. No, she is 5. ………. is your name? – My name’s Mr Brown. A. Who B. How C. What D. How old 6/ This is my brother. ......................is four years old. A. SheB. HeC. ThisD. That 7/ ..................................is your pen? A. What B. HowC. What colourD. How old 8/ My notebooks ..........................white. A. areB. isC. amD. play IV/ Underline and correct the mistake.( gạch chân lỗi sai và sửa lại cho đúng ) 1/ Mrs Lan is my grandfather. 2/ He is my sister. 3/ This man is my mother. 4/ That woman is Mr Long. 5/ These is a house. 6/ It’s very nine. 7/ It there a kitchen in the house? 8/ How old is you? 9/ He is ten year old. 10/ Yes, there isn’t.

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