15.3^11+4.27^4 Phần 9^7 em sẽ tick cho em trả lơif nhanh nhất nha
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A=15.3^11+4.27^4:9^7
\(\frac{15.3^{11}+4.27^4}{9^7}\)
\(\frac{15.3^{11}+4.27^4}{9^7}\)
\(=\frac{5.3.3^{11}+4.\left(3^3\right)^4}{\left(3^2\right)^7}\)
\(=\frac{5.3^{12}+4.3^{12}}{3^{14}}\)
\(=\frac{3^{12}.\left(5+4\right)}{3^{14}}\)
\(=\frac{3^{12}.9}{3^{14}}\)
\(=\frac{3^{12}.3^2}{3^{14}}\)
\(=\frac{3^{14}}{3^{14}}\)
\(=1\)
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\(A=\frac{15.3^{11}+4.27^4}{9^7}\)
\(\Rightarrow\frac{3.5.3^{11}+4.3^{3.4}}{3^{2.7}}\)
\(\Rightarrow\frac{3^{12}.5+3^{12}.4}{3^{14}}\)
\(\Rightarrow\frac{3^{12}\left(5+4\right)}{3^{14}}\)
\(\Rightarrow\frac{9}{3^2}=\frac{9}{9}=1\)
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Xem thêm câu trả lời
15.3^11+4.27^4
9^7
giup mik di tik cho
Tính A =\(\frac{15.3^{11}+4.27^4}{9^7}\)
\(A=\frac{15.3^{11}+4.27^4}{9^7}=\frac{3.5.3^{11}+4.3^{3.4}}{3^{2.7}}=\frac{3^{12}.5+3^{12}.4}{3^{14}}=\frac{3^{12}\left(5+4\right)}{3^{14}}=\frac{9}{3^2}=\frac{9}{9}=1\)
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Rút Gọn
a, \(\frac{15.3^{11}+4.27^4}{9^7}\)
1) 15.311+4.274/97
2) 5.213.411-169/(3.214)2
Tính giá trị biểu thức :
F = \(\frac{15.3^{11}+4.27^4}{9^7}\)
G = \(\frac{5.2^{13}.4^{11}-16^9}{\left(3.2^{17}\right)^2}\)
\(F=\frac{15.3^{11}+4.27^4}{9^7}=\frac{5.3.3^{11}+4.\left(3^3\right)^4}{\left(3^2\right)^7}=\frac{5.3^{12}+4.3^{12}}{3^{14}}=\frac{3^{12}.\left(5+4\right)}{3^{14}}=\frac{3^{12}.9}{3^{12}.9}=1\)
\(G=\frac{5.2^{13}.4^{11}-16^9}{\left(3.2^{17}\right)^2}\)
\(G=\frac{5.2^{13}.\left(2^2\right)^{11}-\left(2^4\right)^9}{3^2.2^{34}}\)
\(G=\frac{5.2^{13}.2^{22}-2^{36}}{3^2.2^{34}}\)
\(G=\frac{5.2^{35}-2^{36}}{3^2.2^{34}}\)
\(G=\frac{2^{35}.\left(5-2\right)}{3^2.2^{34}}\)
\(G=\frac{2^{35}.3}{3^2.2^{34}}=\frac{2}{3}\)
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15.3+4.274
97
tính
a)A=9 mũ 4.2-3 mux6/34.3 mũ7
b)B=15.3 mũ 11+4.27 mũ 4/97