Các câu hỏi tương tự
Bài 2 : a) frac{15^{30}}{45^{15}}?b) frac{45^{10}cdot5^{10}}{75^{10}} ?c) frac{left(0,8^5right)}{left(0,4^6right)}?d)frac{2^{15}cdot9^4}{6^6cdot8^3}?e) frac{8^{10}+4^{10}}{8^4+4^{11}}?g)frac{1^7}{7}. 77?h) frac{90^3}{153}?i) 26 . 56 ?
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Bài 2 :
a) \(\frac{15^{30}}{45^{15}}\)=?
b) \(\frac{45^{10}\cdot5^{10}}{75^{10}}\)= ?
c) \(\frac{\left(0,8^5\right)}{\left(0,4^6\right)}\)=?
d)\(\frac{2^{15}\cdot9^4}{6^6\cdot8^3}\)=?
e) \(\frac{8^{10}+4^{10}}{8^4+4^{11}}\)=?
g)\(\frac{1^7}{7}\). 77=?
h) \(\frac{90^3}{153}\)=?
i) 26 . 56 =?
Tính \(A=\left(\frac{1}{4\cdot9}+\frac{1}{9\cdot14}+\frac{1}{14\cdot19}+...+\frac{1}{44\cdot49}\right)\cdot\frac{1-3-5-7-...-49}{89}\)
\(B=\frac{5\cdot4^{15}\cdot9^9-4\cdot3^{20}\cdot8^9}{5\cdot2^{10}\cdot6^{19}-7\cdot2^{29}\cdot27^6}-\frac{2^{19}\cdot27^3+15\cdot4^9\cdot9^4}{6^9\cdot2^{10}+12^{10}}\)
\(\frac{1}{10\cdot9}-\frac{1}{9\cdot8}-\frac{1}{8\cdot7}-\frac{1}{7\cdot6}-\frac{1}{6\cdot5}-\frac{1}{5\cdot4}-\frac{1}{4\cdot3}-\frac{1}{3\cdot2}-\frac{1}{2\cdot1}\)
a) \(\frac{0,8^5}{0,4^6}\) b)\(\frac{8^{10}+4^{10}}{8^4+4^{11}}\) c)\(\frac{2^{15}\cdot9^4}{6^3\cdot8^3}\)
\(\frac{7}{3\cdot4}-\frac{9}{4\cdot5}+\frac{11}{5\cdot6}-\frac{13}{6\cdot7}+\frac{15}{7\cdot8}-\frac{17}{8\cdot9}+\frac{19}{9\cdot10}\)
Rút gọn:
a) \(\frac{2^{19}\cdot27+15\cdot4^9\cdot9^4}{6^9\cdot2^{10}+12^{10}}\) c)\(\frac{4^6\cdot9^5+6^9\cdot120}{8^4\cdot3^{12}-6^{11}}\)
b)\(\frac{\left(\frac{2}{5}\right)^7\cdot5^7+\left(\frac{9}{4}\right)^3:\left(\frac{3}{16}\right)^3}{2^7\cdot5^2+512}\)
Help me:Tính:( 2-1 + 3-1 ) : ( 2-1 - 3-1 ) + ( 2-1 : 20 ) :23frac{left(frac{2}{5}right)^7cdot5^7+left(frac{9}{4}right)^3:left(frac{3}{16}right)^3}{2^7cdot5^2+512}frac{4^6cdot9^5+6^9cdot120}{^{8^4cdot3^{12}-6^{11}}}frac{4^5cdot9^4-2cdot6^9}{2^{10}cdot3^8+6^8cdot20}
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Help me:
Tính:
( 2-1 + 3-1 ) : ( 2-1 - 3-1 ) + ( 2-1 : 20 ) :23
\(\frac{\left(\frac{2}{5}\right)^7\cdot5^7+\left(\frac{9}{4}\right)^3:\left(\frac{3}{16}\right)^3}{2^7\cdot5^2+512}\)
\(\frac{4^6\cdot9^5+6^9\cdot120}{^{8^4\cdot3^{12}-6^{11}}}\)
\(\frac{4^5\cdot9^4-2\cdot6^9}{2^{10}\cdot3^8+6^8\cdot20}\)
Tính tổng:\(S=\frac{1}{1\cdot3}-\frac{1}{2\cdot4}+\frac{1}{3\cdot5}-\frac{1}{4\cdot6}+\frac{1}{5\cdot7}-\frac{1}{6\cdot8}+\frac{1}{7\cdot9}-\frac{1}{8\cdot10}\)
Tính hợp lý
a)\(\left(-\frac{1}{3}\right)^2\cdot\left(5\frac{1}{2}\right)^0+\left(-\frac{1}{3}\right)^5\cdot4\frac{1}{2}\)
b) \(\left(\frac{2^2\cdot2^3}{4^2\cdot16}\right)^{15};\left(\frac{2^6}{16^2}\right)^{10}\)
c)\(\frac{2^{15}\cdot9^4}{6^6\cdot8^3}\)