`C1 : a^5 : a^0 = a^{5 - 0 } = a^5`
`C2 : a^5 : a^0 = a^5 : 1 = a^5`
`a^5 : a^0 = a^5 : 1 = a^5 (a \ne 0)`
Giải thích:
`a^0 = 1 \forall a ∈ NN`
I. Choose the word that has a different sound from the others of each group. 1. A. warm B. walk C. wall D. wash 2. A. chest B. lunch C. bench D. school 3. A. language B. engineer C. sausage D. jogging 4. A. happy B. hour C. high D. hotel 5. A. station B. intersection C. question D. invitation II. Circle a mistake in each sentence and then correct it. 1/ On the table there are some bread and some bananas. a b c d ………………………. 2/ I likes vegetable soup, some meat and some rice for lunch. a b c d ……………………… 3/ We’re go to the movie twice a week, on Wednesday and Sunday evening. a b c d …………………….. 4/ I hope you can come to me party next Saturday. a b c d ……………………… 5/ Mike often wears white shirts but today he wears a blue shirt. a b c d ………………………… III. Read the passage carefully and then decide True of False. Milk is a good drink .Fruit juice is also a good drink. Milk and fruit juice are very good for our health . Children should drink milk and fruit juice every day . They give us a lot of vitamins . Meat , fish and vegetables are necessary foods . We have meat, fish, vegetables and rice for lunch and dinner . 1. ______ Milk is a good drink . 2. ______ Fruit juices aren't good drinks . 3. ______ Milk and fruit juices are good for children . 4. ______ We also need meat , fish , vegetables . 5. ______ Milk and fruit juice give us a lot of vitamins . IV. Choose the correct answer to complete the sentences. 1. We need a ( tent / kite / camera ) to take some photos. 2. It’s usually ( warm / hot / cold ) in the spring. 3. I’d like some drink, I’m ( thirsty / hungry / full ) 4. I eat an orange everyday. It’s my ( food / favorite / drink ) fruit. 5. How many ( names / countries / languages ) can you speak ?- Two. 6. Ha Noi is the ( capital / city / town ) of Viet Nam. 7. Bruce is from Australia. He speaks ( Australian / French / English). 8. Laura is Canadian. He is from ( France/ China / Canada) V. Put the verbs into correct tense. 1.I (write) …………to my parents now, I (write) ……………..…to them every weekend. 2. Usually, I (read) ……………2 newspapers, but not the same one every day. On Sundays, I (buy) ………………four or five. 3. I can't (swim) ………………., so I shouldn’t (run) ……………..too far from the shore. 4. I haven't got a car at the moment, so I (go) ……….…to work on the bus this week. Usually I (drive) ……………….…..to work. VI. Write the plural form of these following nouns. A child Ê A fish Ê An avocado Ê A chef Ê A Leaf Ê A deer Ê A Sheep Ê A Tomato Ê A volcano Ê A reef Ê A person Ê A radio Ê A piano Ê A hero
Làm giúp mik bài này với ( có giải thích )
Vẽ đậu mầm buồn và khóc NL : Ai cũng khuyên chúng ta khi chúng ta buồn rằng " Mai này sẽ tốt thôi " Nhưng đâu biết ngày mai nó có thể tồi tệ hơn đâu ! .......
Bạn ngân có 2 bóng đèn, mỗi bóng 1,5V. Ngân mắc nối tiếp hai bóng đèn vào mạch điện kín; hỏi ngân nên dùng bộ nguồn gồm mấy quả pin (mỗi pin là 1,5V). A, 3 quả B, 6 quả C, 2 quả D, 4 quả
Giúp mik giải bài này và giải thích tại sao lại làm đáp án đó.
giải bài 3 câu 7,8,9 hộ mình nha
Cali: Summer Again Mùa hè của hương bạc hà Bạc hà chi hạ P/S:Ai thích phim này giống tui ko ạ?
....................................................
Công thức hóa học của thuốc tím là j
giải bài 3 câu 4,5,6 hộ mình nha
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến