(100-1).(100-2). ... .(100-99).(100-100)
=(100-1).(100-2). ... . (100-99).0
=0
CHÚC BẠN HỌC GIỎI
\(\left(100-1\right).\left(100-2\right)......\left(100-99\right).\left(100-100\right)\)
\(=\left(100-1\right).\left(100-2\right)......\left(100-99\right).0=0\)
kết quả bằng 0
1+1+1+1+1+2+2+2+2+2+......+99+99+99+99+99+100+100+100+100+100=?
(100-1) x (100-2) x ... x (100-99) x(100-100)
( 100 - 1 ) x ( 100 - 2 ) x . . . x ( 100 - 99 ) x ( 100 - 100 )
CMR
100-(1/2+1/3+1/4+...+1/100)=2/3+3/4+...+99/100
Bé; lớn; bằng:
4/3 ...... 1; 1...... 3/4; 4/3 ....... 3/4.
1 ...... 11/9; 9/11 ....... 11/9.
100/99 ...... 1; 1 .... 99/100; 100/99 ..... 99/100
Nhanh lên các bạn ơi
(1-99/99)x(1-100/100)x.......x(1-2010/2010)=?
(1-99/99)x(1-100/100)x.......x(1-2010/2010)=?
A = 1-2+3-4+5-6+.....+97-98+99-100+101
B = 1+2-3-4+5+6-7-8+......+98-99-100+101
a) 99 997 ; 99 998 ; 99 999 ; ....................... ; .............................. ; ...............................
b) ........................ ; ............................ ; ............................ ; 100 002 ; 100 004 ; 100 006 .
c) 3 ; 15 ; 35 ; 63 ; .......................... ; ............................. ; ..................................
