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Đơn giản biểu thức: $\frac{\cos^2x+cos^2x.cot^2x}{\sin^2x+sin^2x.tan^2x}$ Câu này rất đơn giản nên mình cho 10 đ là đủ
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VII Fill each blank with ONE suitable word. (12 points). Train journey to work The morning train seemed more crowded (1) passengers than usual. As Emma pushed her way through she realised the she (2) probably have to stand up all the way. This was (3) how she wanted to start her day. Just at (4) moment. She spotted (5) empty seat in a corner of the carriage. Strangely, (6) of the passengers seemed to (7) noticed it, so with a feeling of triumph she went (8) sat down. Opposite her (9) was a young boy playing with something which he was (10) to run over his hand and arm. At (11) Emma didn't pay much attention, but then a sudden movement caught her eye. A large hairy spider was running up the boy's arm! So that's why (12) he taken the seat before. THAY VÀO MỖI SỐ MỘT TỪ THÍCH HỢP ! Giúp mik với :) 60₫ 😢

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