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=(11.3^29-3^30):(2.3^14)
=(11.3^29-3.3^29):(2.3^14)
=[(11-3).3^29]:(2.3^14)
=[8.3^29]:(2.3^14)
=[2^3.3^29]/2.3^14
bn tự rút gọn nha
\(\frac{11.3^{22}.3^7-\left(3^2\right)^{15}}{2^2.3^{28}}=\frac{11.3^{29}-3^{30}}{2^2.3^{28}}=\frac{3^{29}.\left(11-3\right)}{2^2.3^{28}}=\frac{3^{29}.2^3}{2^2.3^{28}}=3.2=6\)
A = 12 : {390 : [500 - (125 + 35.7)]}
A = 12 : {390 : [500 - (125 + 245)]}
A = 12 : {390 : [500 - 370]}
A = 12 : {390 : 130}
A = 12 : 3 = 4
B = 12000 - (1500 . 2 + 1800.3 + 1800.2 : 3)
B = 12000 - (3000 + 5400 + 1200)
B = 12000 - 9600 = 2400
C = \(\frac{11\cdot3^{22}\cdot3^7-9^{15}}{\left(2\cdot3^{14}\right)^2}=\frac{11\cdot3^{22}\cdot3^7-\left(3^2\right)^{15}}{2^2\cdot3^{28}}=\frac{11\cdot3^{29}-3^{30}}{2^2\cdot3^{28}}=\frac{11\cdot3\cdot3^{28}-3^2\cdot3^{28}}{2^2\cdot3^{28}}\)
\(=\frac{33\cdot3^{28}-9\cdot3^{28}}{4\cdot3^{28}}=\frac{\left(33-9\right)\cdot3^{28}}{4\cdot3^{28}}=\frac{24}{4}=6\)
=\((11.3^{29}-\left(3^2\right)^{15}):(2^2.3^{28})\)
=\((11.3^{29}-3^{30}):(2^2.3^{28})\)
=\((11.3^{29}-(3^{29}.3):(2^2.3^{28})\)
=\(\frac{3^{29}.(11-3)}{3^{28}.4}\)
=\(\frac{3.8}{4}\)=\(\frac{3.2}{1}\)=6
a: \(A=25+125=150\)
b: \(B=16+64=80\)
c: \(C=32+9+1=33+9=42\)
d: \(D=1+8+27=35+1=36\)
g: \(K=11\cdot3^{29}-\dfrac{3^{30}}{4\cdot3^{28}}=11\cdot3^{29}-\dfrac{9}{4}\)
\(\frac{11.3^{22}.3^7-9^{15}}{\left(2.3^{14}\right)^2}\)
\(=\frac{11.3^{22}.3^7-\left(3^2\right)^{15}}{\left(2.3^{14}\right)^2}\)
\(=\frac{11.3^{22}.3^7-3^{30}}{\left(2.3^{14}\right)^2}\)
\(=\frac{11.3^{29}-3^{30}}{\left(2.3^{14}\right)^2}\)
\(=\frac{11.3^{29}-3^{30}}{2^2.3^{28}}\)
\(=\frac{11.3^{29}-3.3^{29}}{4.3^{28}}\)
\(=\frac{\left(11-3\right).3^{29}}{4.3^{28}}\)
\(=\frac{8.3^{29}}{4.3^{28}}\)
\(=2.3=6\)