314.54-313.54/312.56+312.56
=313.54.(3-1)/2.312.56
=3.2/2.52
=3/52
=3/25
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Bài 5: Lũy thừa của một số hữu tỉ
Các câu hỏi tương tự
\(\dfrac{3^6.45^4-15^{13}.5^{-9}}{27^4.25^3+45^6}\)
\(\dfrac{3^6.45^4-15^{13}.5^{-9}}{27^4.25^3+45^6}\)
Bài 1:Tính giá trị biểu thức
_{1,}3^2.dfrac{1}{243}.81^2.dfrac{1}{3^3}
_{2,}(4.2^5):left(2^3.dfrac{1}{16}right)
_{3,}left(2^{-1}+3^{-1}right)+left(2^{-1}.2^0right):2^3
_{4,}left(-dfrac{1}{3}right)^{-1}-left(-dfrac{6}{7}right)^0+left(dfrac{1}{2}right)^2:2
_{5,}[(0,1)^2]^0+[(dfrac{1}{7})^{-1}]^2.dfrac{1}{49}.left[left(2^2right)^3:2^5right]
Bài 2:Rút gọn biểu thức
a,dfrac{4^5.9^4-2.6^9}{2^{10}.3^8+6^8.20}
b,dfrac{3^6.45^4-15^{13}.5^{-9}}{27^4.25^3+45^6}
c,left(dfrac{2}{5}right)^7.5^7+left(...
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Bài 1:Tính giá trị biểu thức
\(_{1,}\)\(3^2.\dfrac{1}{243}.81^2.\dfrac{1}{3^3}\)
\(_{2,}\)(\(4.2^5\)):\(\left(2^3.\dfrac{1}{16}\right)\)
\(_{3,}\)\(\left(2^{-1}+3^{-1}\right)+\left(2^{-1}.2^0\right):2^3\)
\(_{4,}\)\(\left(-\dfrac{1}{3}\right)^{-1}-\left(-\dfrac{6}{7}\right)^0+\left(\dfrac{1}{2}\right)^2:2\)
\(_{5,}\)[(0,1)\(^2\)]\(^0\)+[(\(\dfrac{1}{7}\))\(^{-1}\)]\(^2\).\(\dfrac{1}{49}.\left[\left(2^2\right)^3:2^5\right]\)
Bài 2:Rút gọn biểu thức
a,\(\dfrac{4^5.9^4-2.6^9}{2^{10}.3^8+6^8.20}\)
b,\(\dfrac{3^6.45^4-15^{13}.5^{-9}}{27^4.25^3+45^6}\)
c,\(\left(\dfrac{2}{5}\right)^7.5^7+\left(\dfrac{9}{4}\right)^3:\left(\dfrac{3}{16}\right)^3\)
\(\overline{2^7.5^2+512}\)
d,\(\left(\dfrac{2}{3}\right)^3.\left(-\dfrac{3}{4}\right)^2.\left(-1\right)^5\)
\(\overline{\left(\dfrac{2}{5}\right)^2}.\left(-\dfrac{5}{12}\right)^3\)
Rút gọn
a) \(\dfrac{2^{15}.9^4}{6^6.8^3}\)
b) \(\dfrac{45^{15}.5^{15}}{75^{15}}\)
c) \(\dfrac{8^{10}+4^{10}}{8^4+4^{11}}\)
d) \(\left(x^2\right)^5:\left(x^5\right)^2\)
Tính giá trị của biểu thức(tính nhanh nếu có thể):
1)\(\frac{35.\left(27^{8^{ }}+2.9^{11}\right)}{15.\left(81^{6^{ }}-12.3^{19}\right)}\)
2)\(\frac{5.4^{15^{ }}.9^{9^{ }}-4.3^{20^{ }}.8^9}{^{ }5.2^{9^{ }}.6^{19^{ }}-7.2^{29^{ }}.27^6}\)
3)\(\frac{4^{6^{ }}.9^{5^{ }}+6^{9^{ }}.120}{-8^{4^{ }}.3^{12^{ }}-6^{11}}\)
Tính:
\(\xrightarrow[2^{10}.3^8+6^8.20]{4^5.9^4-2.6^9}\)
Tk cho bạn nhanh nhất!!! ✔
Tính
\(\dfrac{-15}{8}-\dfrac{4}{9}+\dfrac{-1}{8}+\dfrac{-5}{7}+\dfrac{-5}{9}\)
\(\left(\dfrac{-3}{4}\right)^3-\left(\dfrac{1}{2}\right)^6+2\)
-6,25+ 2,475- 12,123
GIPUPS MÌNH NHA CÁC BẠN
Tính:
18.(\(\dfrac{-3}{2}\)+\(\dfrac{2}{3}\))2 - 2.(\(\dfrac{-1}{2}\))2.(\(\dfrac{-4}{5}\))+2
Tk cho bạn nhanh nhất!Làm ơn :Đ
Tính
a) \(\left(-52\right)^3:13^3\)
b) \(\left(\dfrac{1}{2}\right)^{15}:\left(\dfrac{1}{4}\right)^6\)
c) \(\left(\dfrac{1}{9}\right)^{30}:\left(\dfrac{1}{3}\right)^{56}\)
d) \(\left(\dfrac{1}{8}\right)^5:\left(\dfrac{1}{16}\right)^3\)