980 = mũ bao nhiêu? | mình đang cần gấp
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2^0 x 2^9 : 8
= 1 x 512 : 8
= 64
nha bạn
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\(35=\left(\sqrt{35}\right)^2\)
\(184=\left(2\sqrt{46}\right)^2\)
\(372=\left(2\sqrt{93}\right)^2\)
\(88=\left(4\sqrt{11}\right)^2\)
\(832=\left(8\sqrt{13}\right)^2\)
\(35=5\cdot7\)
\(184=2^3\cdot23\)
\(372=2^2\cdot3\cdot31\)
\(88=2^3\cdot11\)
\(832=2^6\cdot13\)
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\(A=1+3+3^2+...+3^{2002}\)
\(3A=3+3^2+3^3+...+3^{2003}\)
\(2A=3A-A=3^{2003}-1\Rightarrow A=\dfrac{3^{2003}-1}{2}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
trước khi giảm giá giá của nó là
161000x8=1288000(đồng)
đáp số 1288000 đồng
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\(\left(\dfrac{1}{4}\right)^{2n}=\left(\dfrac{1}{8}\right)^2\)
\(\Rightarrow\left(\dfrac{1}{2}\right)^{2.2n}=\left(\dfrac{1}{2}\right)^{3.2}\)
\(\Rightarrow\left(\dfrac{1}{2}\right)^{4n}=\left(\dfrac{1}{2}\right)^6\)
\(\Rightarrow4n=6\)
\(\Rightarrow n=\dfrac{6}{4}=\dfrac{3}{2}\)
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22*5*72