\(\left(11.3^7.9^7-9^{15}\right):\left(2.3^{14}\right)^2\)
H24
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Tính :
A = \(\dfrac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
A=\(\dfrac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}=\dfrac{11.3^{29}-3^{29}.3}{2^2.3^{28}}=\dfrac{3^{29}.\left(11-3\right)}{2^2.3^{28}}=\dfrac{3^{29}.2^3}{2^2.3^{28}}=3.2=6\)
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\(A=\dfrac{11\cdot3^{22}\cdot3^7-9^{15}}{\left(2\cdot3^{14}\right)^2}=\dfrac{11\cdot3^{29}-3^{30}}{2^2\cdot3^{28}}\)
\(=\dfrac{3^{29}\cdot2^3}{3^{28}\cdot2^2}=3\cdot2=6\)
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Tính giá trị biểu thức:
\(A=\frac{11.3^{22}.3^7.9^{15}}{\left(2.3^{14}\right)^2}\)
\(A=\frac{11.3^{22}.3^7.9^{15}}{\left(2.3^{14}\right)^2}\)
\(A=\frac{11.3^{29}-3^{30}}{2^2.\left(3^{14}\right)^2}\)
\(A=\frac{3^{29}.\left(11-3\right)}{2^2.3^{28}}\)
\(A=\frac{3.2}{1.1}\)
\(A=\frac{6}{1}\)
\(A=6\)
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Tính biểu thức hợp lý:\(11.3^7.9^{13}-9^{15}\left[\frac{2}{3}^{14}\right]^7\)
\(B=\frac{11.3^2^2.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
\(B=\frac{11.3^{29}-3^{30}}{2^2.3^{28}}=\frac{3^{29}.\left(11-3\right)}{4.3^{28}}=\frac{3^{29}.8}{4.3^{28}}=\frac{3.2.3^{28}.4}{4.3^{28}}=3.2=6\)
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N=\(\dfrac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
bạn có máy tính 570 vn plus ko tính là ra
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N = 11. 322 . 37 - 915 / (2.314)2 = 11. 329 - 915/ 628 = 6
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A = \(\frac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
\(\frac{11.3^{22}.3^7-9^{15}}{^{ }\left(2.3^{14}\right)^2}\)
\(\frac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
\(\frac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)=?