M=[(\(\frac{2}{193}\)-\(\frac{3}{386}\)).\(\frac{193}{17}+\frac{33}{34}\)] : \(\left[\left(\frac{7}{2001}+\frac{11}{4002}\right)-\frac{2001}{25}+\frac{9}{2}\right]\)
Tính:
\(\left(\left(\frac{2}{193}-\frac{3}{386}\right).\frac{193}{17}+\frac{33}{34}\right):\left(\left(\frac{7}{1931}+\frac{11}{3862}\right).\frac{1931}{25}+\frac{9}{2}\right)\)
Tính :
\(\left[\left(\frac{2}{193}-\frac{3}{386}\right).\frac{193}{17}+\frac{33}{34}\right]:\left[\left(\frac{7}{1931}+\frac{11}{3862}\right).\frac{1931}{25}+\frac{9}{2}\right]\)
Giúp mik nhé
a) -3/4 . 12/-5 . (-25/6)
b) (11/12 : 33/16) .3/5
c) (-2) . -38/21 . -7/4 . (-3/8)
d) 7/23 . [ ( -8/6) - 45/18 ]
Tính giá trị biểu thức:
A = \(\frac{15}{34}+\frac{7}{21}+\frac{9}{34}-1\frac{15}{17}+\frac{2}{3}\) B = \(16\frac{2}{7}:\left(-\frac{3}{5}\right)-28\frac{2}{7}:\left(-\frac{3}{5}\right)\)
C = 25.\(\left(-\frac{1}{3}\right)^3+\frac{1}{5}-2.\left(-\frac{1}{2}\right)^2-\frac{1}{2}\)
thực hiện phép tính : ( tính nhanh nếu có thể )
a) \(\left(\frac{11}{12}:\frac{33}{16}\right).\frac{3}{5}+\frac{7}{23}.\left[\left(\frac{-8}{6}+\frac{-45}{18}\right)\right]\)
b) \(\left(\frac{-2}{3}+\frac{3}{7}\right):\frac{4}{5}+\left(\frac{-1}{3}+\frac{4}{7}\right):\frac{4}{5}\)
c) \(\frac{5}{9}:\left(\frac{1}{11}-\frac{5}{22}\right)+\frac{5}{9}:\left(\frac{1}{15}-\frac{2}{3}\right)\)
d) \(\frac{-3}{4}.\frac{12}{-5}.\frac{-25}{6}+\left(-2\right).\frac{-38}{21}.\frac{-7}{4}.\frac{-3}{8}\)
1, Tìm x
a, (3x^2-50)^2=5^4
2, Rút gọn
a, (3^4-3^3)^4/27^3
b, 25^3/(5^5-5^3)^2
3, Thực hiện phép tính
a, (-1/3)^2 . 9 - (1/2)^3 .16 +(2:1/2^2)
b, (3/7)^10 . (7^5)^9 : (9/25)^5
c, (0,25)^5 . 2^11 : (1/3)^2
-1/39 + -1/52
-6/9 + -12/16
-2/5 - -3/11 -34/37 - 74/-85
-5/9 : -7/18
Giúp tớ với!! 3h10 đi học rồi
tính nhanh
B = 1/5 - 3/7 + 5/9 - 2/11+ 7/13 - 9/16 -7/13 +2/11 - 5/9 +3/7 -1/5
