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)\(\frac{4^{6^{ }}.9^{5^{ }}+6^{9^{ }}.120}{-8^{4^{ }}.3^{12^{ }}-6^{11}}\)
Bài 1: Tính giá trị biểu thức:
a, \(\frac{5^5.20^3-5^4.20^3+5^7.4^5}{\left(20+5\right)^3.4^5}\)
b, \(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
c, \(\frac{5.\left(3.7^{15}-19.7^{14}\right)}{7^{16}+3.7^{15}}\)
Bài 1: Tính giá trị các biểu thức sau
a,\(\left[2^{-3}-\left(\frac{3}{4}\right)^{-4}.\left(-\frac{1}{2}\right)^2\right]:\left[5-3\left(\frac{4}{15}\right)^0\right]^{-2}\)
b, \(\frac{2^3+3.2^6-4^3}{2^3+3^2}\)
c, \(\frac{5^5.20^3-5^4.20^3+5^7.4^5}{\left(20+5\right)^3.4^5}\)
d, \(\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
e, \(\frac{5.\left(3.7^{15}-19.7^{14}\right)}{7^{16}+3.7^{15}}\)
f, \(\frac{3^3.\left(0,5\right)^5}{\left(1,5\right)^4}\)
Mk cần gấp
a,\(\frac{-1}{24}-\left[\frac{1}{4}-\left(\frac{1}{2}-\frac{7}{8}\right)\right]\)
b,\(\left[\frac{5}{7}-\frac{7}{5}\right]-\left[\frac{1}{2}-\left(\frac{-2}{7}-\frac{1}{10}\right)\right]\)
c,\(\left(\frac{-1}{2}\right)-\left(\frac{-3}{5}\right)+\left(\frac{-1}{9}\right)+\frac{1}{71}-\left(\frac{-2}{7}\right)+\frac{4}{35}-\frac{7}{8}\)
d,\(\left(3-\frac{1}{4}+\frac{2}{3}\right)-\left(5-\frac{1}{3}-\frac{6}{5}\right)-\left(6-\frac{7}{4}+\frac{3}{2}\right)\)
e,\(\left(\frac{1}{2}-\frac{13}{14}\right):\frac{5}{7}-\left(\frac{-2}{21}+\frac{1}{7}\right):\frac{5}{7}\)
g,\(\frac{4}{9}:\left(\frac{-1}{7}\right)+6\frac{5}{9}:\left(\frac{-1}{7}\right)\)
rút gọn biểu thức:
\(1,\frac{\left(5^4-5^3\right)^3}{125^4}\)
\(2,\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
các bạn giúp ình với! HELP ME!!!!!!!!!!
Tính
A=\(\dfrac{2^{19}\cdot27^3-15\cdot\left(-4\right)^9\cdot9^4}{6^9\cdot2^{10}+\left(-12\right)^{10}}\)
a,\(\frac{2}{3}-4.\left(\frac{1}{2}+\frac{3}{4}\right)\)
b,\(\left(\frac{-1}{3}+\frac{5}{6}\right).11-7\)
c,\(\left(\frac{-5}{9}\right).\frac{3}{11}+\left(\frac{-13}{18}\right).\frac{3}{11}\)
d,\(\left(\frac{-2}{3}\right).\frac{3}{11}+\left(\frac{-13}{18}\right).\frac{3}{11}\)
giúp mình với làm ơn
tính: \(\dfrac{4^{6} . 9^{5} + 6^{9} . 120}{-8^{4} . 3^{12} - 6^{11}}\)
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) \(\left(x^2\right)^5:\left(x^5\right)^2\)
bài 3: giúp mình với làm ơn
a, 1,25 . \(\left[-3\frac{3}{8}\right]\) b, \(\frac{-9}{34}.\frac{17}{4}\)
c, \(\frac{-20}{41}.\frac{-4}{5}\) d, \(\frac{-6}{7}.\frac{21}{2}\)
bài 4:
a, \(\frac{-5}{2}.\frac{3}{4}\) b,\(4\frac{1}{5}:\left[-2\frac{4}{5}\right]\)
c,\(1,8:\left[\frac{-3}{4}\right]\) d,\(\frac{17}{15}:\frac{4}{3}\)