B={7,1;-2,(61);0;5,14;4/7;\(\sqrt{81}\)}
\(C=\left\{\sqrt{\dfrac{1}{5}}\right\}\)
B={7,1;-2,(61);0;5,14;4/7;\(\sqrt{81}\)}
\(C=\left\{\sqrt{\dfrac{1}{5}}\right\}\)
Bai 1: Viet 5 so huu ti xen giua -1/2 va 1/3
Bai 2: Cho x=12/n+3(n thuoc Z). Tim de x > -1
hay viet cac bieu thu bieu thi : a, tong cua x vay
cho a;b e Z va b>0 ; so sanh 2 so huu ti a/b va a+1/b+1
so sanh cac so huu ti sau bang cach nhanh nhat
-13/38 va 29/-88
tim GTNN : C = can bac hai cua x+1
the nao la so huu ti ?
so sanh 29/21 va 21/19
THANKS ,MN
Tìm x a) (x-1/3).(x+2/3)=0 b) (3/4x-9/16).(1,5+(-3):x)=0
tong cua xy
a)\(\sqrt{\frac{4}{81}}\): \(\sqrt{\frac{25}{81}}\)- 1\(\frac{2}{5}\)
b) \(\sqrt{36}\). \(\sqrt{\frac{25}{16}}\)+ \(\frac{1}{4}\)
c) 1\(\frac{1}{2}\)+ \(\frac{4}{7}\): \(\frac{-8}{9}\)
d) 1,17 - 0,4.\(\frac{1}{2}\)^2 -\(\frac{1}{-5}\)