k mình nha!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Ta có:

3A-A=(3²+3³+3⁴+3⁵+...+3¹⁰⁰+3¹⁰¹)-(3+3²+3³+3⁴+...+3¹⁰⁰)=3¹⁰¹-3 =>2A=3¹⁰¹-3 < 3¹⁰¹-3=B

=> A<B (Chứ ko phải A>B)

Kq trên là

85 - 85 = 0

0 + 85 = 85

tích mik nha

thanks

10^10=10 000 000 000

4 la tứ 

3 la tam

tu chia tam la tam hcia tu

8/4=2

nha ban tkm innh nha thanks

\(99+1-1+1=100\)

cua tre em

98 cây chứ

nhớ k đấy

hứa nhé

Bạn vào http://olm.vn/hoi-dap/question/172372.html nhé ! 

Chúc bạn học tốt !!