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cuongnguyengg80
2 năm trước
tính A= (1-$\frac{1}{1+2+3}$) (1-$\frac{1}{1+2+3+4}$) (1-$\frac{1}{1+2+3+4+5}$)..... (1-$\frac{1}{1+2+3+...+100}$) giải thích rõ hộ mk nháe mk sẽ vote 5 sao cho bạn nào trả lời đúng nháe
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Read the passage:Tet is a national and traditional festival in Viet Nam. It is occasion for every Vietnamese to be reunited to think about their past activities and hope for good luck in the year to come.Before Tet all houses are white washed and decorated with yellow apricot flowers and colorful lanterns. Everybody is looking forward to a more favorable life.On the New Year’s Eve, children are smartly dressed. They are hoping to receive money put in small red envelopes as they are wishing longevity to their grandparents and parents. 1. Write True (T) or False (F) for each sentence: 1. Tet is occasion for every Vietnamese to think about the past activities and hope for good luck.2. __ After Tet all house are white washed.3. __ On the New Year’s Eve, children are hoping to receive a candy put in red box.2. Answer the questions: 1/ Is Tet a national and traditional festival in Viet Nam?........................................................................................................................................2/ How are all houses decorated before Tet?...........................................................................................

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