so sanh 2 luy thua sau
a) 99 mu 20 va 9999 mu 10
b) 3 mu 223 va 2 mu 332
1)so sanh : a=10^41-1/10^42-1 va b=10 ^ 40 -1 /40^11+1 .2)ct: 1/2-1/4+1/8-1/16+1/32-1/64<1/3
so sanh A va B; A=1/2^2+1/2^3+.....+1/2^1000; B=1
so sanh A va B; A=1/2+1/2^2+1/2^3+.....+1/2^1000; B=1
so sanh A va B biet
A =\(\frac{5^{30}-1}{5^{32}-1}\)
B = \(\frac{5^{32}-1}{5^{34}-1}\)
1)so sanh : a=10^41-1/10^42-1 va b=10 ^ 40 -1 /40^11+1 .
2)ct: 1/2-1/4+1/8-1/16+1/32-1/64
cho a= 1+3+3^2+...+3^12 / 1+3+3^2+...+3^13 va b = 1+5+5^2+5^3+...+5^12 / 1+5+5^2+...+5^13 so sanh a va b
a)cho a,b,n thuoc N*.hay so a=n/b=n va a/b so sanh
b)choA=10^11-1/10^12-1;B=10^10+1/10^11+1.So sanh A va B
Cho A = 1 + 2 + 2^2 + 2 ^ 3 + ... + 2 ^2017
va B -= 2^2018 - 1
So sanh A va B
giai ra giu mk nha