1+1+1+1=.......
AI LAM NHANH TO TICH CHO
1+1+1+1+1+1+1=......
ai lam nhanh to tich cho
1+1+1+1+1=......
ai lam nhanh to tich cho
1+1+1+1+1=..........
ai lam nhanh to tich cho
1+1+1+1+1=5 ks nha mình trả lời đầu tiên nè
\(A=\frac{1}{21}+\frac{1}{2.22}+.......\frac{1}{1993.2013}\)
ai lam nhanh to tich cho
( x +1 ) + ( x +2) + ..............+(x+100) = 5750
ai lam nhanh to tich cho
Ta có: (x+1)+(x+2)+....+(x+100) = 5750
=> (x+x+x+...+x) + (1+2+3+3+.....+100) = 5750
=> 100x + 5050 = 5750
=> 100x = 5750 - 5050 = 700
=> x = 700:100
=> x = 7
Vậy x = 7
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
x + 1 + x + 2 + x + 3 + .... + x + 100 = 5750
(x + x + x + ... + x) + (1 + 2 + 3 + ... + 100) = 5750
100x + 5050 = 5750
100x = 5750 - 5050 = 700
x = 700 : 100 = 7
( x + 1) + ( x + 2) + ... + (x + 100) = 5750
(x + x + x + ... + x ) + (1 + 2 + ... + 100) = 5750
100x + (1 + 2 + ... + 100) = 5750
100x + 5050 = 5750
100x = 5750 - 5050
100x = 700
x = 7
\(B=1^2+2^2+...........+100^2\)
ai lam nhanh to tich cho 3 lan
-1+3-5+7-9+.....-209+2011-2013
co phan loi giai
ai lam nhanh to tich cho
1) 24363737373+387474637384 =?
2\23456789-34565789=?
3\38284764738474+384738473=?
cac ban ai lam nhanh va dung nhat to tich cho
\(24363737373+387474637384=4,118383748_{x10^{11}}\)
chuc bn hoc gioi!
nhae
~~~~~~
bnae~~~~~
7 + 1 = ??????????????
ai lam nhanh nhat minh tich cho ok