\(\frac{2^{19}.27^3+15.4^9.9^4}{6^9.2^{10}+12^{10}}=\frac{2^{19}.3^9+5.2^{18}.3^9}{2^{10}.6^9+2^{10}.6^{10}}=\frac{2^{18}.3^9.\left(2+5\right)}{2^{10}.6^9\left(1+6\right)}=\frac{2^{18}.3^9.7}{2^{10}.6^9.7}=2^8.\left(\frac{1}{2}\right)^9=2^8.\frac{9}{2^9}=\frac{1}{2}.9=\frac{9}{2}\)Vậy C=\(\frac{9}{2}\)
tính: A = \(\frac{2}{3}+\frac{5}{6}:6-\frac{1}{8}.\left(-3\right)^2\)
B = \(\frac{2^{19}+27^3+15.4^9.9^4}{6^9.2^{10}+12^{10}}\)
hepl me T_T.
1, So sánh A và B biết A=\(\dfrac{2^{19}.27^3+15.4^9.9^4}{6^9.2^{10}+12^{10}}\) B=\(\dfrac{4}{35}+\dfrac{4}{63}+\dfrac{4}{99}+\dfrac{4}{143}+\dfrac{4}{195}\) ( GIÚP Mk Với Mk Đang Cần Gấp )
Rút gọn biểu thức sau:
\(\frac{2^{20}.27^3+30.4^9.9^4}{6^9.4^5+12^{10}}\)
Tính giá trị biểu thức:
\(\dfrac{2^{20}.27^3+30.4^9.9^4}{6^9.4^5+12^{10}}\)
219.273+15.49.94/69.210+210
Rút gọn biểu thức: \(C=\frac{12-\sqrt{15.135}+\left(\sqrt{31}\right)^2}{\sqrt{\frac{80}{45}-\frac{10}{\left(\sqrt{3}\right)^2}}}\)
Rút gọn biểu thức:
\(P=\frac{3^{2010}-6^{2010}+9^{2010}-12^{2010}+15^{2010}-18^{2010}}{-1+2^{2010}-3^{2010}+4^{2010}-5^{2010}+6^{2010}}\)
Tính nhanh : \(\frac{4^5.9^3-12^5}{2^{10}.8^1-2^9.9^2}\)
Rút gọn
C = \(\frac{\left(\frac{2}{5}\right)^7.5^7+\left(\frac{9}{4}\right)^3:\left(\frac{3}{16}\right)^3}{2^7.5^2+512}\)
D = \(\frac{2^{12}.3^5-4^6.9^2}{\left(2^2.3\right)^6+8^4.3^5}\)
E = \(\frac{5^{10}.7^3-25^5.49^2}{\left(125.7\right)^3+5^9.14^3}\)
