giúp với ạ √3 sin4x +cos4x-4sin2x=1
6. My mother is a ………..woman. She always takes care of us. (care) 7. We often take part in English writing………………. at school. (compete) 8.The ………..of the internet was made in 20th century. (cover) 9. I shouted at the dog and it walked away …………….. . (oppoint) 10. He lost both his house and his ……… because of the storm. (live) Yêu cầu: +Phải nói được chỗ đó điền được từ gì +Phải giải thích vì sao chỗ đóa điền từ loại đó +Dịch luôn nhea (giống google quạo nhea)
B = - 2 + 4 + (- 6) + 8 + . . . + (- 18).
Giúp mình với mình đang cần gấp ạ cảm ơn nhìu
VI. Complete the sentence with the past simple or past perfect form of the verb in brackets. 1. They (live) in Paris for 10 years before they (move) home. 2. As soon as I (download) the document, I knew I (make)a mistake. 3. Mary (ring) John’s doorbell at 8:15 yesterday but John (already/ leave) the house. 4. By the time the firemen (arrive), the fire (destroy)three houses. 5. Our economy (not stand) a chance of developing before thegovernment (adopt) the open-door policy. 6. When I last (speak) to her, she still (not finish)her assignment. 7. Nobody (come) to the meeting because Angela (forget)to tell them about it. 8. She (go) to Disneyland three times when she (be) a little girl. 9. After I (complete) the form, I (give) it to the secretary. 10. Sarah (drive) three hundred miles by the time she (arrive)in Tacoma.
mọi người giúp mình với còn bài cuối thôi ạ !!!
mới học đến TOÁN 8 : HÌNH CHỮ NHẬT nên ko dùng kiến thức chưa học
EXERCISE 3. Find the mistake in these sentences and fix the mistake. 1. Five suspects (A) have be (B) arrested (C) by the (D) police. 2. He was ordered (A) by the (B) doctor to (C) take an (D) long rest. 3. A (A) dancing class (B) was start (C) last week (D). 4. He were found (A) in the (B) forest by (C) the (D) police. 5. A (A) car is (B) going to been (C) bought (D) tomorrow. 6. These drugs are (A) be (B) destroyed (C) by police (D). 7. I'm from (A) Russia and (B) my family born (C) there (D).
Cho x và y là hai đại lượng tỉ lệ nghịch, biết rằng khi X = -2 thì y = -6.Vậy hệ số tỉ lệ là
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