a,(-1/2)+3/5-7/18-(-2/7)-1/9+4/35 b,1/3+(-7/4)+1/15-2/9-(-3/5)-1/36

Giúp mk với ạ Nếu có thể sửa luôn đc nữa thì càng tốt ạ Cảm ơn vì đã giúp mk

Giải pt: tan³x - cot³x - 3( tan²x + cot²x) - 3( tanx - cotx) + 10 = 0

Give the correct from of the verbs in brackets to complete the following sentences . 1. ( to jog ) is suitable for your health condition 2. If you ( to wait ) a minute , I ( to ask ) my parents 3. If you ( to be ) new to thís hobby , you ( should/to choose ) something simple to start with 4. When I was 6 years old , my mum ( to teach ) me how to cook my fish dish 5 .. Her best friend ( like/ to camp )

Mong cac thánh giúp em da lam tới câu 50 ạ

Sửa lỗi sai Ba and Song plays football every afternoon with me. …………………………………………………………………………………. We buy two new rackets yesterday. We’re going to play tennis this afternoon. …………………………………………………………………………………. I’m not going to do the homework for you. You should do it itself. …………………………………………………………………………………. Our neighbors invited my friend and I to dinner with them. …………………………………………………………………………………. You should try your best learning hard to pass the exam. …………………………………………………………………………………. Bob lived in Rome for three years and he doesn’t want to move to other city. …………………………………………………………………………………. They write the meaning of new words by their mother tongue. …………………………………………………………………………………. How many countries will participate on the Olympic Games? …………………………………………………………………………………. This job is a lot different with what I’m used to. …………………………………………………………………………………. Not only the bathroom was flooded, and also the rest of the house. ………………………………………………………………………………….

Từ các nguyên tố Al, Na, S, O, chọn 2; 3 hoặc 4 nguyên tố lập thành CTHH của hợp chất (nếu có).

Tìm x;y;z biết: d) $\frac{27^{x}}{3^{2x-y}}$ = 243 và $\frac{25^{x}}{5^{x+y}}$ = 125

cho Δ ABC đều, trên tia đối AB,AC lấy AM=AN. D trung điểm AN, F trung điểm AB, E trung điểm MC 1) cm: MNCB hình thang cân 2) ΔDEF đều camon

Make questions 1.Which person/ closest to?/why ? 2.what/looking forward to / most ? 3.what achievements/most proud of?