a) Do `BA ⊥ a; AB ⊥b`
`=> a `//` b` (Hai góc trong cùng phía)
b) Ta có:
`hat{C1} = hat{C2} `
mà chúng so le trong
`=> b `//` c`
c) Lại có: `a `//` b; b `//` c `
`=> a `//` c `
(Chúc bạn học tốt)
Đáp án+Giải thích các bước giải:
Bài `7:`
`a)` Ta có: `AB bot a`
`AB bot b`
`=> a //// b`
`b)` Lại có: `\hat{B_1} = \hat{C_2}(=40^o)`
mà `2` góc này nằm ở vị trí so le trong
`=> b //// c`
`c)` Mặt khác: `a //// b`
`b //// c`
`=> a //// c`
chuyển câu gián típ => trực típ nha: nhớ giải thik nha giải thik ngắn gọn thui 1. he said to her "you are wearing your best clothes" =>................................................................. 2. they said,"we are unlucky today" =>............................................................. 3. she said to me, "I want to speak to your brother " =>......................................................................... 4. she said, "I have helped my brother" =>....................................................................... 5. John said to Mary, "she is ready to go with us" =>.............................................................................. 6. she said to me, "they do not know you" =>........................................................................ 7. he said, "I shall answer the phone" =>............................................................... 8. she said to them, "You can do it if you try" =>........................................................................... 9. he said, "he has done his homework well"
`Tìm\ x:\ 3^x + x^(log_x 3^(x-2)) = 9^(x-log_(x-4 x^2)+100)`
I thought she might faint when her face because so_________ A.green B.blue C.white D.pale Mrs Green would not _________Margaret to walk home alone A.want B.agree C.disagree D.welcome I lost my coat , but Margaret let me__________one of hers A.lend B.borrow C.return D.sell John has_________the picture with black pencil A.drawn B.drown C.throne D.thrown The boy cried when he saw_________coming from the cut on his finger A.flood B.food C.blood D.good I heard the sick man ___________in pain A.cry B.yell C.moan D.shout He lied so much that when he told the __________nobody belived him A.true B.real C.fact D.truth Four times __________makes one hundred
Mng giúp em với ạ !!!!!!! Nếu có phải vẽ thêm j vào hình thì vẽ hộ em luôn ạ
Vẽ anime / chibi / đậu mầm = app ( 1 trong 3 thui nha , vẽ xấu = bc , hợp gu các Mod ko là bị xóa á ) NL: Tui thấy hâm mộ một mod vừa vẽ đẹp vừa dễ tính lại dễ thương 😍😍 Bạn yêu quý nhất mod nào 😊😊😊
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helpppppppppppppppppppppppppppppp vsssssssssssssssss
Làm giúp mik với mọi người mik đang cần gấp á
Giúp mình với ạ. Gấp ạ. Put the verbs in brackets into an appropriate tense, either active or passive. An example has been done for you. Joseph Ford, the politician who (0) was kidnapped (kidnap) last week as he (1) ....(drive) to his office, (2).... (release) unharmed. He (3) ...(examine) by a doctor last night, and (4)... (say) to be in good health. Mr. Ford (5)... (find) walking along a small country lane early yesterday evening. A farmer (6)... (see) him, (7)... (recognize) who it was, and (8)... (contact) the police. When his wife (9)... (tell) the news, she said, "I'm delighted and relieved that my husband (10)... (find)." Acting on information received, the police (11)... (make) several arrests, and a man (12)... (now/question) in connection with the kidnapping.
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