Hướng dẫn mik các tạo kiểu này trong Excel với ạ
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\(=\dfrac{\dfrac{3}{7}+\dfrac{3}{5}-\dfrac{3}{4}}{\dfrac{2}{5}-\dfrac{2}{4}+\dfrac{2}{7}}-\dfrac{\dfrac{1}{8}+\dfrac{1}{6}-\dfrac{1}{2}}{\dfrac{3}{6}-\dfrac{3}{2}+\dfrac{3}{8}}=\dfrac{3}{2}-\dfrac{1}{3}=\dfrac{7}{6}\)
\(=\dfrac{1}{120}-\dfrac{2}{3}\left(\dfrac{1}{30}-\dfrac{1}{33}+\dfrac{1}{33}-\dfrac{1}{36}+...+\dfrac{1}{117}-\dfrac{1}{120}\right)\)
\(=\dfrac{1}{120}-\dfrac{2}{3}\left(\dfrac{1}{30}-\dfrac{1}{120}\right)\)
\(=-\dfrac{1}{120}\)
like playing soccer, don't you
goes to school late, doesn't he
can swim very well, can't you
is going to the party, isn't she
was published in Germany in 1550, wasn't it
are sold all over the world, aren't they
have been built this year, haven't they
was given a book, wasn't he
were bought by Mrs Brown yesterday, weren't they
is used everyday, isn't it
60 = 5 . 3 . 22
280 = 5 . 7 . 23
=> ƯCLN ( 60 ; 280 ) = 5 . 22 = 20
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