Câu hỏi theo thẻ

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phiếu
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chọn đáp án đúng

trong các số sau số nào có giá trị bằng số 20,19 A. 20,019 B. 20,190 C. 20,109 D. 20,901
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phiếu
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giúp em với, nhớ giải thật chi tiết

So sánh :a) $10^{20}$ và $9^{10}$b) $(-5)^{30}$ và $(-3)^{50}$c) $64^{8}$ và $16^{12}$d) $\left ( \frac{1}{16} \right )^{10}$ và $\left ( \frac{1}{2} \right )^{50}$
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phiếu
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giúp em với ! (cho em kết quả)

a) Rút gọn : $\frac{16.18-16.7}{15.33+33}$b) So sánh : $\frac{-13}{12}$ và $\frac{-19}{18}$

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