\(\frac{2^7.16^{13}}{8^{10}.4^{15}}=\frac{2^7.\left(2^4\right)^{13}}{\left(2^3\right)^{10}.\left(2^2\right)^{15}}=\frac{2^7.2^{52}}{2^{30}.2^{30}}=\frac{2^{59}}{2^{60}}=\frac{1}{2}\)
\(\frac{2^7.16^{13}}{8^{10}.4^{15}}=\frac{2^7.\left(2^4\right)^{13}}{\left(2^3\right)^{10}.\left(2^2\right)^{15}}=\frac{2^7.2^{52}}{2^{30}.2^{30}}=\frac{2^{59}}{2^{60}}=\frac{1}{2}\)
Bài 1 hãy tính
1 . A = \(\frac{9^5.5^7}{45^7}\)
2 .B = \(\left(\frac{2^2.2^3}{4^2.16}\right)^{15}\)\(:\left(\frac{2^6}{16^2}\right)^{10}\)
3 . A= \(\frac{-5.7^5+7^4}{7^6.10-2.7^5}\)
4 . B = \(\frac{10^3+5.10^2.5^3}{-13}\)
5 . A = \(\frac{\left(-0,03\right)^7.2^8}{\left(0,6\right)^7}\)
6 . B= \(\frac{3^7.16^3}{12^5.27^2}\)
7 . A = \(\frac{2^3.\left(0,5\right)^3.3^7}{2.\left(,5\right)^4.3^8}\)
8 . B = \(\left(\frac{-1}{3}\right)^3\)\(.\left(\frac{-1}{3}\right)^2\)\(.\left(\frac{-1}{3}\right)\)
Giúp mik nhé . mik cần ngay
tìm x,biết:
a)\(\frac{2}{\left(x+2\right)\left(x+4\right)}+\frac{4}{\left(x+4\right)\left(x+8\right)}+\frac{6}{\left(x+8\right)\left(x+14\right)}=\frac{x}{\left(x+2\right)\left(x+14\right)}\)
b)\(\frac{x+1}{10}+\frac{x+1}{11}+\frac{x+1}{12}=\frac{x+1}{13}+\frac{x+1}{14}\)
c)\(\left(x+2\right)^2=\frac{38}{25}+\frac{9}{10}-\frac{11}{15}+\frac{13}{21}-\frac{15}{28}+\frac{17}{36}-...+\frac{197}{4851}-\frac{199}{4950}\)
giúp tớ với,huhu
TÌM X BIẾT:\(\frac{x+2}{10^{10}}+\frac{x+2}{11^{11}}+\frac{x+2}{12^{12}}+\frac{x+2}{13^{13}}\)
giúp mik với ạk
Tính :
\(\left(13\frac{1}{4}-2\frac{5}{7}-10\frac{5}{6}\right).230\frac{2}{25}+46\frac{3}{4}\)
Giúp mik đi mik cần gấp !!!!!!!!!!!
Tính :
\(A=\frac{1}{3}-\frac{1}{18}-\frac{1}{54}-\frac{1}{108}-\frac{1}{180}-\frac{1}{270}-\frac{1}{378}\)
AI GIÚP MIK GIẢI VS AK !! MIK ĐG CẦN GẤP !! AI GIẢI GIÚP MIK THÌ MIK CHO 10 TIK LUÔN AK !!
Tính giá trị của các biểu thức sau bằng cách hợp lý nhất :
a)\(\left(4\frac{5}{37}-3\frac{4}{5}+8\frac{15}{29}\right)-\left(3\frac{5}{37}-6\frac{14}{29}\right)\)
b)\(60\frac{7}{13}x+50\frac{8}{13}x-11\frac{2}{13}x\)với \(x=-8\frac{7}{10}\)
\(5.|\frac{-1}{10}+\frac{7}{15}|-\frac{2}{13}.4\frac{1}{3}\)
giúp mình nha
\(\frac{50-\frac{4}{13}+\frac{2}{15}-\frac{2}{17}}{100-\frac{8}{13}+\frac{4}{15}-\frac{4}{17}}\)
Rút gọn
a) \(\frac{2^{13}.3^7}{2^{15}.3^2.9}\)
b) \(\frac{4^{10}+8^4}{4^5+8^6}\)