Đáp án:
$\begin{array}{l}a)A = \dfrac{{3 - \sqrt 3 }}{{\sqrt 3 }} = \dfrac{{\sqrt 3 \left( {\sqrt 3 - 1} \right)}}{{\sqrt 3 }} = \sqrt 3 - 1\\b)B = \dfrac{{2\sqrt 2 + \sqrt 6 }}{{4 + \sqrt {12} }}\\ = \dfrac{{\sqrt 2 .\left( {2 + \sqrt 3 } \right)}}{{4 + 2\sqrt 3 }}\\ = \dfrac{{\sqrt 2 \left( {2 + \sqrt 3 } \right)}}{{2\left( {2 + \sqrt 3 } \right)}}\\ = \dfrac{{\sqrt 2 }}{2}\\c)C = \sqrt {9{{\left( {x - 5} \right)}^2}} \left( {x \ge 5} \right)\\ = 3\left( {x - 5} \right)\\d)D = \dfrac{{\sqrt {6 + 2\sqrt 5 } }}{{\sqrt 5 + 1}} = \dfrac{{\sqrt {5 + 2\sqrt 5 + 1} }}{{\sqrt 5 + 1}}\\ = \dfrac{{\sqrt {{{\left( {\sqrt 5 + 1} \right)}^2}} }}{{\sqrt 5 + 1}}\\ = \dfrac{{\sqrt 5 + 1}}{{\sqrt 5 + 1}}\\ = 1\end{array}$
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Question I. Give the correct form of the word in brackets. 1. One of the __________________________ in my hometown is the traditional market, which is open every Sunday. (ATTRACT) 2. What are the differences between Dong Ho _ ____________________ and Sinh ones? (PAINT) 3. This is a very beautiful piece of______________________ (EMBROIDER) 4____________ is one of the biggest problems in this city. (EMPLOY) 5. Photography is strictly ________________ in this museum. (FORBID) 6.These baskets are _____________________________ from strips of bamboo. (WEAVE) 7.These _______live mainly on farming and making incenses when crops are over.( VILAGE) 8.It’s a______________place where anyone can borrow books and take them home to read.(EDUCATE) 9. There are so many places of_____________ in Ha Noi that I am not sure I can see them all. ( INTERESTING ) 10. Sydney, located in the state of New South Wales, Australia , is a city of national and _____________ diversity. ( CULTURE ) Question II. Choose the correct answer A, B, C , or D to complete the letter. Dear Elisa, Thanks very much for your email. It was fun to read about the places you find interesting. I (1) ______ like going to museums in my free time. There are several museums in my city, but I like the Museum of Fine Arts the most. I love art, so (2) ______ I have free time, I go to this museum. There's a great mix (3) ______ art from across the eras, including some really impressive modern Vietnamese paintings. What I especially like about the museum is that (4) ______ of its galleries have an introduction in Vietnamese, English, and French. It (5) ______ that I can learn lots of English while enjoying the art works. Another place of interest that I love is the (6) ______ park. It’s near my house, so I go there almost every day. Sometimes I go for a walk around the park with my mother. Sometimes I choose a beautiful place in it to sit and draw some sketches. And sometimes I just sit (7) ______ a bench, doing nothing, just watching people passing by. It’s really relaxing. I hope someday I’ll have a(n) (8) ______ to visit your National Portrait Gallery and Hyde Park. Until the next email, Mi 1.A.don’t like B.interested in C.also D.will 2.A.because B.though C.that D.when 3.A.in B.of C.on D.with 4.A.all B.one C.none D.not 5.A.means B.shows C.proves D.tells 6.A.locality B.small C.area D.local 7.A.in B.at C.on D.with 8.A.chance B.opportunity C.time D.choice giúp mình với
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Ôi! Nghèo quá. Tôi khổ đến thế này "Nghèo quá" có thể khôi phục thành"Tôi nghèo quá" nhưng dữ liệu"Tôi" lại ở câu sau . Vậy nghèo quá là câu đặc biệt hay câu rút gọn?
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