vì -31<-21 nên -31/19 < -21/19
vì -31<-21 nên -31/19 < -21/19
bai 1: so sanh cac phan so sau:
a) 10/17 va 5/8 b) 49/59 va 63/73 c) 12/19 va 11/21
d) 23/27 va 23231/27271 e) 13/37 va 21/65 g) 47/15 va 65/21
1: so sanh cac phan so sau:
a) 10/17 va 5/8 b) 49/59 va 63/73 c) 12/19 va 11/21
d) 23/27 va 23231/27271 e) 13/37 va 21/65 g) 47/15 va 65/21
So sanh 31^19 va 17^24
So sanh bang cach dung so trung gian: 19/26 va 21/25
so sanh M va N
M=\(\frac{19^{30}+5}{19^{31}+5}\)
N=\(\frac{19^{31}+5}{19^{32}+5}\)
so sanh hai phan so 31/40 va 186/241 bang nhieu cach
so sanh ; a) s(-9)+(-15)va (-10)+(-14) b) (-19)+(-5)va (-21)+(-2)
so sanh 2 phan so
a=10^19+1/10^20+1;b=10^20+1+10^21+1