làm hết mình vote 5 sao nha !!!!!!!!!!!! 1, tìm số nguyên n lớn nhất sao cho $n^{200}$ < 5$^{300}$ 2, cho a = $2^{12}$ .$5^{8}$ . tìm chữ số a 3, cho số b = $3^{1001}$ .$7^{1002}$ .$13^{1003}$ Tìm chữ số hàng đơn vị của số b 4, số các chữ số c = $4^{16}$ .$5^{25}$ là : A.31 B.30 C.29 D.28 E.27 5, Tìm x biết : $\frac{\frac{x}{4}}{2}$ = $\frac{4}{\frac{x}{2}}$

Các câu hỏi liên quan

EX1: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. Question 29: The weather was cold. We went swimming. A. Although the weather is cold, we went swimming. B. Although the weather was cold, but we went swimming. C. Because the weather was cold, we went swimming. D. Despite the cold weather, we went swimming. Question 30: Children are playing chess in the garden. A. Chess is played in the garden by children. B. Chess is being played in the garden by children. C. Chess is playing in the garden by children. D. Chess is being play in the garden by children. EX2: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. Every season there are new clothes and new fashions in the shops. Colours and styles keep (31)_________. One season black is the 'in' colour, but the next season everyone is wearing orange or pink or grey. The length of women's skirts goes up and down from year to year. A shirt (32) _____ you once thought was very trendy can look (33)_______oldfashioned a few years later. And your father's shirts, you always thought were very conservative and traditional, can suddenly become (34)_________. Keeping up with the fashions can be very expensive. So one way to save money is never to throw your old clothes out. If you wait long enough, the clothes are out of fashion today will be (35)_________ in fashion tomorrow. Yesterday's clothes are tomorrow's new fashions. Question 31: A. to change B. changed C. changing D. change Question 32: A. whom B. that C. what D. who Question 33: A. stranger B. strangeness C. strange D. strangely Question 34: A. outdated B. old C. useless D. stylish Question 35: A. back B. away C. out D. up

EX1: Mark the letter A, B, C or D on your answer sheet to indicate the meaningful sentence from the cues given. Question 23: Jim/ always/ want/ climb/ Mount Everest/ since/ he/ be/ boy. A. Jim has always wanted to climb Mount Everest since he was a boy. B. Jim have always wanted to climb Mount Everest since he was boy. C. Jim have always want to climb Mount Everest since he was a boy. D. Jim has always wanted climbing Mount Everest since he was a boy. Question 24: I / suggest/ that/ money/ should/ raise/ the charity/. A. I suggest that money should be raised for the charity. B. I suggest that money should raise for the charity. C. I suggest that money should be raising for the charity. D. I suggest that money should be raised the charity. EX2: Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. Question 25: Linda no longer plays volleyball with her friends in the afternoon. A. Linda used to play volleyball with her friends in the afternoon. B. Linda used to plays volleyball with her friends in the afternoon. C. Linda gets used to playing volleyball with her friends in the afternoon. D. Linda got used to playing volleyball with her friends in the afternoon.Question 26: '' How long have you lived in Ha Noi''? said my friend. A. My friend asked me how long have I lived in HaNoi. B. My friend asked me how long had I lived in HaNoi. C. My friend asked me how long I had lived in HaNoi. D. My friend asked me how long I have lived in HaNoi. Question 27: Ba is lazy, so he often gets bad marks. A. If Ba were hard-working, he gets better marks. B. If Ba were hard-working, he would got better marks. C. If Ba were hard-working, he would get better marks. D. If Ba were hard-working, he would get worse marks. Question 28: Reading comic books is one of her interests. A. She is interested in reading comic books. B. I am interested in reading comic books. C. She was interested in reading comic books. D. She is interested in read comic books.