11155+111111= 122266
k mk nha
chac chan do .
Sao bạn lại hỏi ngốc vậy!
11155 + 111111 = 122266
511-x+72=146+x-31
ai lam nhanh to tich cho
( x +1 ) + ( x +2) + ..............+(x+100) = 5750
ai lam nhanh to tich cho
\(B=1^2+2^2+...........+100^2\)
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
\(A=\frac{1}{21}+\frac{1}{2.22}+.......\frac{1}{1993.2013}\)
ai lam nhanh to tich cho
cho n la so nguyen to lon hon 3. hoi n^2 la nguyen to hay hop so. ai lam loi giai va lam dung la duoc tich
cho dap an la hop so nhung phai lam cach lam
tim so tu nhien nho nhat co :
a,8 uoc b, 12 uoc c, 9 uoc
ai lam nhanh to tich cho
Chung to 5^ -1chia het cho 4 ai lam duoc thi duoc tich dung
Chung to A = 1 x 2 + 2 x 3 + 3 x 4 + ..... + n x [ n + 1 ] = {[n x [ n + 1 ] x [ n + 2 ] }/3 , n > 0
Cac ban nhanh len nhe ngay mai minh phai nop roi . Ai lam nhanh , dung dau tien minh cho 1 tich
