\(=\dfrac{7^9\cdot3^9\cdot3^9-3\cdot2^{18}\cdot3^8}{2^9\cdot2^{10}\cdot3^9+2^{20}\cdot3^{10}}=\dfrac{3^9\left(7\cdot3^9-2^{18}\right)}{2^{19}\cdot3^9\left(1+2\cdot3\right)}=\dfrac{-124363}{2^{19}\cdot7}=\dfrac{-124363}{3670016}\)
\(=\dfrac{7^9\cdot3^9\cdot3^9-3\cdot2^{18}\cdot3^8}{2^9\cdot2^{10}\cdot3^9+2^{20}\cdot3^{10}}=\dfrac{3^9\left(7\cdot3^9-2^{18}\right)}{2^{19}\cdot3^9\left(1+2\cdot3\right)}=\dfrac{-124363}{2^{19}\cdot7}=\dfrac{-124363}{3670016}\)
Rút gọn :
A= \(\frac{12^{10}+6^9.4^6}{15.2^{18}.9^4-2^{19}-27^3}\)
Rút gọn :
P = \(\frac{12^{10}+6^9.4^6}{15.2^{18}.9^4-2^{19}-27^3}\)
rút gọn
1+3^2+3^3+3^4+3^5.+.....+3^20
Rút gọn biểu thức sau:
\(P=\frac{12^{10}+6^9.4^6}{15.2^{18}.9^4-2^{19}-27^3}\)
Mình cần gấp các bạn giúp nha!
Rút gọn phân số sau :
5 . 213 . 411 - 169 / ( 3 . 217)2
Rút gọn phân số sau :
A = 5 . 213 . 411 - 169 / ( 3 .217)2
Rút gọn phân số sau :
\(\dfrac{7.4^5.3^{11}+2^{13}.9^5}{6^{10}+2^{12}.3^{10}}\)
Rút gọn phân số:
\(\frac{5^2.6^{11}.16^2+6^2.12^6.15^2}{2.6^{12}.10^4-81.960^3}\)
Help me!!!
1. Rút gọn các phân số sau:
a, \(\dfrac{3^{10}.\left(-5\right)^{21}}{\left(-5\right)^{20}.3^{12}}\)
b, \(\dfrac{5^{11}.7^{12}+5^{11}.7^{11}}{5^{12}.7^{12}+9.5^{11}.7^{11}}\)