\(=\dfrac{5^6+5^6\cdot2^2+5^6\cdot2^3}{26\cdot5^6}=\dfrac{6^6\left(1+4+8\right)}{26\cdot5^6}=\dfrac{13}{26}=\dfrac{1}{2}\)
\(=\dfrac{5^6+5^6\cdot2^2+5^6\cdot2^3}{26\cdot5^6}=\dfrac{6^6\left(1+4+8\right)}{26\cdot5^6}=\dfrac{13}{26}=\dfrac{1}{2}\)
\(2^{-1}+\left(5^2\right)^3\cdot5^{-6}+32-2\cdot\left(-3\right)^2\cdot\dfrac{1}{9}\)
a ) (-\(\)\(\dfrac{4}{3}\)x + \(\dfrac{1}{2}\))2 = \(\dfrac{1}{4}\)
b) 3 x + 3 x+2= 20
c) ( \(\dfrac{1}{2}\)) x+ (\(\dfrac{1}{2}\))x+2= \(\dfrac{5}{4}\)
Giúp mk với !!! Ngày mai mk làm kiểm tra rồi !!! PLEASE
Tính
C=\(\dfrac{2^{12}\cdot3^5-4^6\cdot9^2}{\left(2^2\cdot3^6\right)^6+8^4\cdot3^5}-\dfrac{5^{10}\cdot7^3-25^5\cdot49^2}{\left(125\cdot7\right)^3+5^9\cdot14^3}\)
1 Tínha \(\left(\dfrac{5.5^3}{5^2.49}\right)^{15}:\left(\dfrac{5^6}{434}\right)^7\)
b \(\dfrac{49^{24}.125^{10}.2^8-5^{30}.7^{49}.4^5}{5^{29}.16^2.7^{48}}\)
làm nhanh giúp mik nha, chiều mai phải nộp rồi...thanks bn giúp mik nhiều lắm lun !!!
\(\left(\dfrac{4}{13}\cdot\dfrac{6}{5}+\dfrac{4}{13}\cdot\dfrac{2}{5}\right)\cdot\left(2x+1\right)^2=\dfrac{10}{13}\)
\(\left(\dfrac{-5}{8}\right)-x\div3\dfrac{5}{6}+7\dfrac{3}{4}=-2\)
bài 1 tính
a/ \(\left|1\dfrac{1}{2}-2\dfrac{1}{3}\right|^2+\left|1-\dfrac{5}{4}\right|\)
b/\(\left|\left(-1\right)^{100}-2\dfrac{1}{3}\right|+\dfrac{5}{6}\)
c/\(\left|\left(\dfrac{2}{3}\right)^{-1}-\dfrac{7}{4}\right|-\dfrac{7}{4}\)
d/ \(\left|x-5\right|+\left|x-8\right|\) với 5 \< x>/
1) Thực hiện phép tính
a) \(\dfrac{4^6x9^5+6^9x120}{-8^4x3^{12}-6^{11}}\)
b) \(\dfrac{1}{1-\dfrac{1}{1-2-1}}+\dfrac{1}{1+\dfrac{1}{1+2-1}}\)
Tính :
a) \(25^3:5^2\)
b) \(\left(\dfrac{3}{7}\right)^{21}:\left(\dfrac{9}{49}\right)^6\)
c) \(3-\left(-\dfrac{6}{7}\right)^0+\left(\dfrac{1}{2}\right)^2:2\)
Viết kết quả của các câu sau dưới dạng lũy thừa của một số nguyên tố
a) \(\dfrac{2^{14}.3^{12}}{6^{11}}\)
b) \(\dfrac{6^{18}}{9^9.8^5}\)