Tính \(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}\)
$\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}$
TÍnh \(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}+6^{11}}\)
Tính
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
\(=\dfrac{2^{12}\cdot3^{10}+2^9\cdot3^9\cdot2^3\cdot3\cdot5}{2^{12}\cdot3^{12}-2^{11}\cdot3^{11}}\)
\(=\dfrac{2^{12}\cdot3^{10}\cdot6}{2^{11}\cdot3^{11}\cdot5}=\dfrac{2}{3}\cdot\dfrac{6}{5}=\dfrac{12}{15}=\dfrac{4}{5}\)
Tính :
\(A=\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}\)
Ta có : \(A=\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}=\frac{\left(2^2\right)^6.\left(3^2\right)^5+2^9.3^9.2^3.3.5}{-\left(2^3\right)^4.3^{12}-2^{11}.3^{11}}\)
\(=\frac{2^{12}.3^{10}+2^{12}.3^{10}.5}{-2^{12}.3^{12}-2^{11}.3^{11}}=\frac{2^{12}.3^{10}\left(1+5\right)}{2^{11}.3^{11}\left(-2.3-1\right)}=\frac{2\left(1+5\right)}{3\left(-6-1\right)}=\frac{2.6}{3.\left(-7\right)}=\frac{-12}{21}\)
Tính: 4^6.9^5+6^9.120/-8^4.3^12-6^11
tính A = 4^6.9^5+6^9.120/8^4.3^12-6^11
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)tính GTBT
tính biểu thức \(10.\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
=5^1+3+5+7+.....+49
Số các số hạng từ 1 đến 49 là (49-1):1+1=50
Tổng các số từ 1 đên 49 là (49+1).50:2=1250
=5^1250
Tính \(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}=?\)