`6 / 7 . 5 / 11 + 5 / 7 . 2 / 11 - 5 / 7 . 14 / 11`
`= 5 / 7 . 6 / 11 + 5 / 7 . 2 / 11 - 5 / 7 . 14 / 11`
`= 5 / 7 . ( 6 / 11 + 2 / 11 - 14 / 11 )`
`= 5 / 7 . [-6] / 11`
`= -30 / 77`
tính
5/7.5/11+5/7.2/11-5/7.14/11
k) (-1/2)2:1/4-2.(-1/2)2
m) (-2)3.-1/24+(4/3-1 5/6):5/12
n) (6 4/9 + 7/11) - (4 4/9 - 2 4/11)
p) 10 1/5 - 5 1/2. 60/11+3:15%
q) 5/7.5/11+5/7.2/11-5/7.14/11
r) -5/7.2/11+-5/7.9/11+1 5/7
GIÚP MÌNH VỚI Ạ. CẢM ƠN MỌI NGƯỜI!
5/7.5/11+5/7.2/11+5/11.14/7=
-11/12.1/8+11/12.-3/16-11/12
giai chi tiet giup minh
Tính nhanh : a) -1-2-3-4-5-.....-199-200-201-202 b) 1+2-3-4+5+6-7-8+9+10-11-12+13+98-99-100+101+102
Giai chi tiet giup minh nha !!! Minh tich cho !!
Rut gon cac phan so sau
\(\frac{\left(-5\right)^2.\left(-6\right)^{11}.16^2-6^2.\left(-12\right)^6.15^2}{2.\left(-6\right)^{12}.10^4-81^2.960^3}\)
Cac ban giai nhanh va chi tiet cho mk nha
Minh xin cam on nhieu
( tính nhanh )
a,8/40+-14/35-12/60 b,5/7.5/11+5/7.5/11-5/7.14/11 c,19 5/8: 7/12-15 1/4:7/12
d, 2/5.1/3-2/15:1/5+ 3/5.1/3 e,4/9.19 1/3 - 4/9.39 1/3 g,81.17-15.81/81.17-81.15
mn giup minh voi
A=5+5^2+5^3+....+5^100
a,CS chi a chia 6
b, cs chi a chia 16
c, tim x cn 4A+5=5^x+2
d, 4A +5 co phai la so chinh phuong khong
can gap nha, cam on ban nao da giup minh
37/7.8/11+58/7.5/11-327/7.2/11
