...................=66

...................=110

=66

=220

1/5 * 1/5 * 1/5 *1/5 * 1/5 * 1/5 * 1/5 * 1/5 * 1/5 * 1/5 * 1/5 * 1/5 * 1/5 * 1/5 *  1/5 * 1/5 * 1/5 * 1/5 * 1/5 * 1/5 *  1/5 * 1/5 = 1/5²²

~ Hok tốt ~
#JH

Trả lời

1/5*1/5*1/5*...*1/5*1/5=1/5²²

Học tốt nhé !

ko bít 

tui cũng ko bít

13095579

dễ mà

A = 2^3 + 2^4+ 2^5+ 2^6 + 2^7 + ... + 2^90 

2A = 2^4 + 2^5 + 2^6 + 2^7 + 2^8 + .... + 2^90 + 2^100

2A - A = ( 2^4 + 2^5 + 2^6 + 2^7 + 2^8 + .... + 2^90 + 2^100 ) - (  2^3 + 2^4+ 2^5+ 2^6 + 2^7 + ... + 2^90 ) 

A = 2^100 - 2^3 

B = 1 + 5 + 5^2 + 5^3 + 5^4 + .... + 5^50 

5B = 5 + 5^2 + 5^3 + 5^4 + 5^5 + .... + 5^50 + 5^51 

5B - B = ( 5 + 5^2 + 5^3 + 5^4 + 5^5 + .... + 5^50 + 5^51 ) - ( 1 + 5 + 5^2 + 5^3 + 5^4 + .... + 5^50 )

4B = 5^51 - 1 

B = 5^51 - 1 / 4

sai 100% 

vì khổng thể đÂU  

1 phép cộng không có số vượt qua 10 thì không thể 

là số lớn hơn 100 đc 

cho xin nhé 

thanks

sai 100%

\(A=\left(5+1\right)\left(5^2+1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)\left(5^{32}+1\right)\)

\(4A=\left(5-1\right)\left(5+1\right)\left(5^2+1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)\left(5^{32}+1\right)\)

\(4A=\left(5^2-1\right)\left(5^2+1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)\left(5^{32}+1\right)\)

\(4A=\left(5^4-1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)\left(5^{32}+1\right)\)

...

\(4A=5^{64}-1\)

\(\Rightarrow A=\frac{5^{64}-1}{4}>B=\frac{5^{64}-1}{5}\)

Ai trả lời đúng và nhanh nhất mik sẽ

Kho..................wa.....................troi.....................thi......................lanh.................ret.......................ai........................tich..........................ung.....................ho........................minh.....................cho....................do....................lanh

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