Giải phương trình 1. Cos(x+ $\frac{\pi }{3}$ ) + sin2x =0 2. $sinx^{3}$ .cosx = $\frac{1}{4}$ . $cosx^{3}$ .sinx

giúp mình bài 4 nha, mình cảm ơn nhiều ạ

giúp mình bài 2 và 3 nha, mình cảm ơn nhiều ạ

giúp mình bài 1 nha, mình cảm ơn nhiều ạ

Giúp mình với ạ Mình cảm ơn trước nha :3

Giúp mình với ạ mình cần gấp lắm mọi người cíu em với ạ

Giúp mk vs ạ ! Hiện h mk đã đỗ lớp 10 và đang phân vân trong việc chọn khối mn ai có kinh nghiệm tư vấn giúp mk vs ạ

Giúp mình với. Nhanh với ạ =((((

1. Either (A) the doctor or the nurses takes (B) care of changing (C) the patients’ (D) bandages. 2. Please arrive (A) on time in order to (B) we will be able (C) to start (D) the meeting punctually. 3. They hardly never (A) go to the beach (B) because of (C) their sickness, do they (D)? 4. The people in Europe are now using (A) the common unit of money called (B) Euro, although (C) the economies in those countries are not exact (D) the same. 5. Most (A) bacteria has (B) strong cell walls much (C) like those (D) of the plants. 6. The (A) first nation park in (B) the world, calling (C) Yellowstone Park, was established (D) in 1872. 7. My father used to giving (A) me some good (B) advice whenever (C) I had a problem (D). 8. All the (A) witnesses said that (B) John was blaming for (C) the accident. 9. The doctor advised him (A) to avoid eating (B) fatty foods, having (C) more fresh vegetables and drink much (D) water. 10. People should not expect to rescue (A) by their parents every time (B) they get into (C) financial difficulty (D). Sửa lỗi sai-nhanh nha

Cầu xin mọi người hãy giúp em , một bài thôi ạ !! Hứa tặng 5 vote + 6 cảm ơn ! Ai nhanh mà đúng cho luôn hay nhất ạ