giúp mk vs mk cần gấp lắm
tính \(A=\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}\)
$\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}$
Giúp mk với nha ,plz!!! Mk tick cho !!!! <3
Tính giá trị biểu thức
E=\(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}\)
F=\(\frac{6^3+3.6^2+3^3}{-13}\)
E = \(\frac{\left(2^2\right)^6.\left(3^2\right) ^5+\left(2.3\right)^9.2^3.3.5}{-\left(2^3\right)^4.3^{12}-\left(2.3\right)^{11}}\)
E = \(\frac{2^{12}.3^{10}+2^9.3^9.2^3.3.5}{-2^{12}.3^{12}-2^{11}.3^{11}}\)
E = \(\frac{2^{12}.3^{10}+2^{13}.3^{10}.5}{-2^{11}.3^{11}.\left(2.3+1\right)}\)
E = \(\frac{2^{12}.3^{10}.\left(1+5\right)}{-2^{11}.3^{11}.7}\)
E = \(\frac{2^{12}.3^{10}.6}{-2^{11}.3^{11}.7}\)
E=\(\frac{-2^{11}.\left(-2\right).3^{10}.6}{-2^{11}.3^{10}.3.7}\)
E = \(\frac{-2.6}{3.7}=-\frac{4}{7}\)
Vậy E = -4/7
Ý F bn lm tương tự nha
giúp mình vs:
Rút gọn A=\(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}\)
(mình yếu toán nên mog các bn giải chi tiết nha.^^)
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}=\frac{2^{12}.3^{10}+3^{10}.2^{12}.5}{2^{12}.3^{12}-2^{11}.3^{11}}=\frac{2^{12}.3^{10}.6}{6^{12}-6^{11}}=\frac{2^{12}.3^{10}.6}{6^{11}\left(6-1\right)}=\frac{2^{10}.3^{10}\left(2^2+1\right).6}{6^{11}.5}=\frac{6^{11}.5}{6^{11}.5}=1\)
\(\frac{4^6.9^5^+6^9.120}{8^4.3^{12}-6^{11}}\)
\(\frac{4^6.9^5+6^9.120}{-6^{11}-8^4.3^{12}}\)
Cho mình hỏi chỗ -611 là -611 hay (-6)11
Tính nhanh;
\(10\cdot\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
giúp nha!
mai mk nộp rồi!
kết quả ra là 40 . Cậu đạt thừa số chung ở phần tử số là 212x 310 và phần mẫu là 211x311 rồi rút gọn 2 phần là ra 4 rồi nhân 10 là 40
Tính :
\(A=\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}\)
Ta có : \(A=\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}=\frac{\left(2^2\right)^6.\left(3^2\right)^5+2^9.3^9.2^3.3.5}{-\left(2^3\right)^4.3^{12}-2^{11}.3^{11}}\)
\(=\frac{2^{12}.3^{10}+2^{12}.3^{10}.5}{-2^{12}.3^{12}-2^{11}.3^{11}}=\frac{2^{12}.3^{10}\left(1+5\right)}{2^{11}.3^{11}\left(-2.3-1\right)}=\frac{2\left(1+5\right)}{3\left(-6-1\right)}=\frac{2.6}{3.\left(-7\right)}=\frac{-12}{21}\)
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}.10\)
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}.10=\frac{2^{12}.3^{10}+2^9.3^9.120}{2^{12}.3^{12}-2^{11}.3^{11}}.10=\frac{2^{10}.3^{10}\left(2^2+20\right)}{2^{10}.3^{10}\left(6^2-6\right)}.10=\frac{24.10}{30}=8\)