\(\dfrac{2^{12}.3^{5}-4^{6}.9^{2}}{(2^{2}.3)^{6}}\)
\(=\dfrac{2^{12}.3^{5}-2^{12}.3^{4}}{2^{12}.3^{6}}\)
\(=\dfrac{2^{12}.3^{4}(3-1)}{2^{12}.3^{4}.3^{2}}\)
\(=\dfrac{2}{9}\)
2^12.3^5-4^6.9^2/(2^2.3)^6+8^4.3^5-5^10.7^3-25^5.49^2/(125.7)^3+5^9.14^3
B=2^12.3^5-4^6.9^2/(2^2.3)^6+8^4.3^5-5^10-25^5.49^2/(125.7)^3+5^9.14^3
(2^12.3^5-4^6.9^2) / [(2^2.3)^6 +8^4.3^5] - (5^10.7^3-25^5.49^2) / [(125.7)^3+5^9.14^3]
thực hiện phép tính
A=2^12.3^5 - 4^6.9^2/(2^2.3)^6 + 16^3.3^10+120.6^9/4^6.3^12+6^12
(2^12.3^5-4^6.9^2)/((2^3.3)^6)-5^10.7^3-25^5.49^2/(125.7)^3+5^9.14^3
gửi đến bạn vũ thu trang
4^6x9^5+6^9x120/8^4x3^12-6^11
= (2^2)^6.(3^2)^5 + (2.3)^9.3.5.2^3 / (2^3)^4.3^12 - (2.3)^11
= 2^12.3^10 + 2^9.3^9.3.5.2^3 / 2^12.3^12 - 2^11.3^11
= 2^12.3^10 + 2^12.3^10.5 / 2^11.2. 3^11.3 - 2^11.3^11
= 2^12.3^10.(1+5) / 2^11.3^11.(6-1)
= 2^12.3^10.6 / 2^11.3^11.5
= 4/5
Rút gọn biểu thức : A= 2^12.3^5-4^6.81/(2^2.3)^6+8^4.3^5
giải giúp mk với ạ đang cần gấp bây giờ
tính
A=\(\dfrac{2^{12}.3^5-4^6.9^2}{\left(2^2.3\right)^6+8^4.3^5}-\dfrac{5^{10}.7^3-25^5.49^2}{\left(125.7\right)^3+5^9.14^3}\)
giúppppppppppppppppppp
