Giải thích các bước giải:
`|x - 5/4| - 1/3 = 7/12`
`⇔ |x - 5/4| = 7/12 + 4/12`
`⇔ |x - 15/12| = 11/12`
`⇒ x - 15/12 = 11/12 hoặc x - 15/12 = -11/12`
`⇒ x = 13/6 hoặc x = 1/3`
`Vậy x ∈ {13/6 ; 1/3}`
`| x - 5/4| - 1/3 = 7/12`
`|x - 5/4| = 7/12 + 1/3`
`|x - 5/4| = 7/12 + 4/12`
`|x - 5/4| = 11/12`
⇒ `+)` Trường hợp `1` :
`x - 5/4 = 11/12`
`x = 11/12 + 5/4`
`x = 11/12 + 15/12`
`x = 26/12`
`x = 13/6`
``
`+)` Trường hợp `2` :
`x - 5/4 = -11/12`
`x = -11/12 + 5/4`
`x = -11/12 + 15/12`
`x = 4/12`
`x = 1/3`
Vậy `x ∈ { 13/6 ; 1/3}`
Put the verb in bracket into the present continuous tense or simple present tense. The last train (leave)............. the station at 11 o’clock.
VII. Rewrite the second sentence so that it has a similar meaning to the first one 1. Because she behaves well, everyone loves her. Because of ………………………………………………………………………………………………………………………………… 2. We have made great progress in our economy in the last few years. Great progress …………………………………………………………………………………………………………………………… 3. I have studied English for three years. I began………………………………………………………………………………………………………………………………………… 4. They are building a new school in that village. A new school ……………………………………………………………………………………………………………………………… 5.No one in my group is more intelligent than Mary. → Mary ................................................................................................................................... 6. What leisure activity do you like most? What’s………………………………………………………………………………………… 7. How about going window-shopping this afternoon? Shall…………………………………………………………………………………………
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cấu trúc của thought, althought and even thought nhanh cần gấp
Nguồn âm là j? Điểm chung của các nguồn âm?
Cho tam giác ABC vuông tại A, đường cao AH. Tính sin của góc C khi: BH= 2cm, AH=23cm
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$\frac{-2}{15}$ - x = $\frac{3}{10}$ Tìm x
Mn giúp mik lm bài tập vs ạ V. Viết lại các câu sau sao cho nghĩa ko thay đổi theo gợi ý (nếu có) 1. He works much. He feels motivated. -> The more ………………………………………………… 2. The house is big. The rent is expensive. -> The bigger …………………………………………………. 3. The film is good. The audiences are excited. -> The better ……………………………………………….…….. 4. She studied hard. She was happy. -> The ………..……………………………………………….……… 5. This phone works more effectively than that one. -> That phone ……………………………………………….……… 6. Mr Smith is wealthier than Mr.Brown. ->………..……………………………………………….……… 7. My house is smaller than my parent’s house. ->………..……………………………………………….……… 8. Jim looks much younger than his classmates. ->………..……………………………………………….……… 9. Your hair is longer than mine. ->………..……………………………………………….……… 10. I don’t think you are taller than me. ->………..……………………………………………….………
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