\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}+6^{11}}=\frac{2^6.2^6.3^5.3^5+2^9.3^9.2.2.2.5}{2^4.2^4.2^4.3^{12}+2^{11}.3^{11}}\)\(=\frac{2^{12}.3^{10}.5}{3^2+2^{11}.3^{11}}=\frac{2.5}{3^3}=\frac{10}{27}\)
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}+6^{11}}=\frac{2^6.2^6.3^5.3^5+2^9.3^9.2.2.2.5}{2^4.2^4.2^4.3^{12}+2^{11}.3^{11}}\)\(=\frac{2^{12}.3^{10}.5}{3^2+2^{11}.3^{11}}=\frac{2.5}{3^3}=\frac{10}{27}\)
Câu 1: Tính
a) A=\(\left(\frac{1}{2^2}-1\right).\left(\frac{1}{3^2}-1\right).....\left(\frac{1}{98^2}-1\right).\left(\frac{1}{99^2}-1\right)\)
b) B=\(\frac{1}{2}:\left(-1\frac{1}{2}\right):1\frac{1}{3}:\left(-1\frac{1}{4}\right):1\frac{1}{5}:\left(-1\frac{1}{6}\right):...:\left(-1\frac{1}{100}\right)\)
c) C=\(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}+6^4}\)
Tính: a. A=\(\frac{4^6.9^5+6^9+120}{-8^4.3^{12}-6^{11}}\)
b. B=\(\frac{1}{1-\frac{1}{1-2^{-1}}}+\frac{1}{1+\frac{1}{1+2^{-1}}}\)
Tính B=\(\frac{\left(\frac{2}{3}\right)^3.\left(\frac{-3}{4}\right)^2.\left(-1\right)^5}{\left(\frac{2}{5}\right)^2.\left(\frac{5}{12}\right)^2}-\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
giúp mình giải chi tiết nha các bạn mai mình phải nộp rồi
1, tìm x
\(a.\frac{-3}{4}-y:\frac{1}{5}=\frac{9}{28}\)
\(b.5^x+5^{x+2}=650\)
2.
tính
\(M=\frac{4^6.9^3+6^9.120}{-8^4.3^{12}-6^{11}}\)
help me ! nhờ các bạn giúp mk với
Tính giấ trị biểu thức :
A= [ ( 6\(\frac{3}{5}\) - 3 \(\frac{3}{14}\) ) . ( 5\(\frac{5}{6}\) ) : [ ( 21 - 1,25 ) : 2, 5
B= \(\frac{0,125-\frac{1}{5}+\frac{1}{7}}{0,375-\frac{3}{5}+\frac{3}{7}}+\frac{\frac{1}{2}+\frac{1}{3}-0,2}{\frac{3}{4}+0,5-\frac{3}{10}}\)
C = \(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
1) Tính nhanh:
\(10\cdot\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
Bài 1 Rút gọn các biểu thức sau : A=\(\frac{^{4^6.9^5+6^9.120}}{8^4.3^{12}-6^{11}}\) B= \(\frac{4^2.25^2+32.125}{2^3.5^2}\)
Bài 2 So sánh : B= \(\frac{3^{10}.11+3^{10}.5}{3^9.2^4}\) C= \(\frac{2^{10}.39+2^{10}.65}{2^8.104}\)
Hiện tại mình đang cần gấp giúp mk nha!
1. \(10.\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
2 Tìm số tự nhiên x,y sao cho \(10^x+48=y^2\)
\(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}.10\)