Đáp án:
Điều kiện: X>0=>1/ căn x>0x>0=>x+1>1
=> pt phải lớn hơn 1
=> pt vô nghiệm
Giải thích các bước giải:
$1+1+\frac{1}{\sqrt{x}}=0$$\Leftrightarrow 2+\frac{1}{\sqrt{x}}=0$$\Rightarrow x\in \varnothing $
1 lớp học có chưa đến 45 Học Sinh . Cuối năm có 30% Học Sinh giỏi,3/8 số học Sinh xếp loại khá ,còn Lại Học sinh trung bình. Tính số Học sinh trung bình?
a).22/7:911-x)+2/3=7/5 b).(x+1)+(x+2)+(x+3)+...+(x+100)=5550
How long driving? - I for over five years . (YOU DRIVE, DRIVE) When I school I my hair and it short ever since. (LEAVE, CUT, WEAR) When I through your books I noticed that you have a copy of Murder in the Cathedral. (LOOK) The plane that you at now off for Paris (LOOK, JUST TAKE) Tom and James a conversation. Please , don't disturb them !(HAVE) He the flowers when it to rain (WATER, START). here? - Yes, I my holidays here last year. Did you have a nice time? - No , it all the time. (YOU EVER BE, SPEND, RAIN) Jack his job last year and out of work since then (LOSE, BE) Your fingers are brown. You too much. (BE, SMOKE) What between 9 and 12 yesterday ? I the house. (YOU DO, CLEAN) Housewives to work very hard (HAVE). I began English at a secondary school. Then I it for a year and most of it. After that I two years in Cambridge and for the last six months I in London. (DROP, FORGET, SPEND, STUDY) Her boss up to her when she in. "You have been late every morning this week", he said (LOOK, COME, BE). In the evenings I often chess with my next door neighbour. I chess with him ever since I to live here ten years ago. He has been here all his life. He this house from his father, another great chess player (PLAY, PLAY, COME, INHERIT) If I a ghost I would try to frighten people (BE). I hope it when we leave church (NOT RAIN). Since you gave me your number I you four times. (PHONE) our president ? (YOU EVER MEET) John came in with a very dirty face and I wondered what he (DO). They in Liverpool for ten years when I first met them (LIVE).
Viết 1 đoạn văn nghị luận từ 10-12 câu trình bày suy nghĩ của e về ý nghĩa của tính tự lập đối với học sinh này nay
Cho tam giác ABC , M là trung điểm của BC , trên tia đối của tia MA lấy điểm E sao cho ME=MA. CMR : a , AC=EBvà AC//BE b Gọi I là một điểm trên AC, K là một điểm trên EB sao cho AI=EK, CMR: I,M,K thẳng hàng c Từ E kẻ EH vuông góc với BC, biết góc HBE=50độ , góc MEB=50 độ , Tính góc HEM và góc BME giúp mk với ạ
tìm hai số tự nhiên biết số lớn chia cho số bé dược thương là 2 và dư 21 .tổng hai số đó là 258
Lẽ sống đẹp thể hiện qua nhân vật lục vân tiên
Vẽ Anime - Chibi Nghĩ cho mk 1 cái chữ kí cho nick Muichirou Toukitou nèo ? Chứ mỗi lần trl cứ Mui ko chán chán ^^ Mong mod ko xoá của iêm ak ^^
Tại sao hào kiệt hưởng ứng khởi nghĩa Hai Bà Trưng
I that for years. (KNOW) my brother? - I for him four some time now but I him yet. ( YOU SEE, LOOK, NOT FIND) You a motorcycle one day, just wait (GET) He was very poor when he (DIE). We here for six weeks and it yet (BE, NOT RAIN) The accident three days ago (HAPPEN) I any work yet, so I tonight. (NOT WORK, MUST WORK) Mr Smith here any more? - No, he a year ago (NOT LIVE, MOVE) Mary yesterday evening. You still up. her? (COME, BE, YOU SEE) to the dance with us ? - Everybody you know will be there. (YOU COME) He usually football on Saturday nights. (PLAY) Joe a degree in 1977 after he at the university for over 5 years. (GET, STUDY) My uncle interested in football for many years, but he since his time in high school (BE, NOT PLAY) a good English roast beef sandwich? (YOU EVER TRY) Listen! - Our neighbour the piano (PLAY). I can go now. I my work (JUST FINISH). They each other for only three weeks but they want to get married next Saturday. (KNOW) How that scar? - I it in a car accident a year ago. (YOU GET, GET)
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