gì vẬY CHẾ, MÌNH TỰ HỎI TỰ TRẢ LỜII
gì vẬY CHẾ, MÌNH TỰ HỎI TỰ TRẢ LỜII
1+1+1++1+1+1+1+1+1+1+1+1-11+1+1+1+1+1-1+1+1+1+1+1+1+11+1++1+1-+11-1+1+1+11-1+1+1+1+1+1+1-11+111+1-11+11+1+1+1+11-1+1+11-+1+1=?
100000-1-1-1-1-1-1-1--1--1-1-1--1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-11-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1--1-1-1-1-1-1-1-1-111=?
thách thằng nào biết =?
nghĩ tẹt
1,tính:
a,\(\dfrac{1}{1-\dfrac{1}{1-\dfrac{1}{2}}}+\dfrac{1}{1-\dfrac{1}{1-\dfrac{1}{2}}}\)
b,\(\dfrac{1}{1-\dfrac{1}{1-\dfrac{1}{3}}}+\dfrac{1}{1-\dfrac{1}{1-\dfrac{1}{3}}}\)
a) ( 1+1/9) x ( 1+1/10 ) x ( 1+1/11) x .... x ( 1+1/120)
b) ( 1-1/10) x ( 1-1/11) x ( 1-1/12 ) x .... x ( 1-1/99)
Cho A = 1 - 1/2 + 1/3 + 1/4 + .... + 1/2017 +1/2018 + 1/2019
B = 1/1010 + 1/1011 + 1/1012 + .... + 1/2017 + 1/2018 + 1/2019
Tính (A-B-1)2019
(1-1/2).(1-1/3).(1-1/4).....(1-1/2020).(1-1/2021)
( 1 - 1/2 ) . ( 1 - 1/3) . ( 1 - 1/4) ... ( 1 - 1/2009) . ( 1 - 1/2010)
B=(1-1/2)+(1-1/4)+(1-1/8)+.......+(1-1/152)+(1-1/1024)+(1-2048)
2. Cho:
B= 1 - 1/2 + 1/3 - 1/4 +...+ 1/2021 - 1/2022 + 1/2023 C= 1/1012 + 1/1013 + 1/1014 +...+ 1/2021 + 1/2022 + 1/2023
Tính: B-C
F = ( 1 + 1/2 ) . ( 1 + 1/3) . ( 1 + 1/4) ... ( 1 + 1/2009) . ( 1 + 1/2010)
Giups mình vs